Although in the TV series, Westeros seemed not very large, with cities close to each other and reachable in just a few days, in reality, the distance between cities in the Seven Kingdoms is vast, and travel time can be measured in months or even years.
For example, when Linde traveled from Golden Tree City to New Barrel City before, because he went downstream, the speed was very fast, taking only four or five days. However, if he traveled by land, it would probably take more than a month to arrive, and this is assuming good road conditions; if the road conditions were poor, it could even take another month.
After the House Tyrell's party left New Barrel City, they traveled northeast along the Rose Road, stopping and resting along the way, and it took them over a month to reach Bitterbridge.
Baron Caswell, who had received the news in advance, waited outside his castle to welcome Garlan Tyrell's party and stated that a banquet had been prepared, requesting Garlan to stay for the banquet and spend the night, departing the next day, to fulfill his duties as a host.
Baron Caswell, only thinking of pleasing House Rose, acted extremely humbly, leaving Garlan Tyrell no reason to refuse. Consequently, the party set up camp outside Bitterbridge Castle, and Garlan, along with the knights and nobles in the party, went into the castle to attend the banquet.
Although Linde was Fortimo Klenne's squire, he was not qualified to attend such a noble banquet. He could only stay in the camp with the rest of the party and enjoy the food provided by Baron Caswell.
During this past month, Linde had not learned any combat-related skills from Fotimo. Fotimo directly told him that he could no longer teach him anything in terms of swordsmanship and combat, and advised him to continue practicing using his previous methods. The only thing he could do was teach Linde how to be a squire.
Thus, taking care of Fotimo's warhorse, helping Fotimo maintain his armor and weapons, and learning some basic knightly etiquette became his daily routine. For the rest of the time, he followed his past methods to improve his physique and train for group combat.
However, what was truly useful to Linde had nothing to do with knightly combat: the cultural lessons.
Every evening, Fotimo would have Scholar Holly teach Linde the history of the Seven Kingdoms, the family histories of the great noble houses, and each family's sigils and mottos.
Originally, Linde's understanding of the Ice and Fire World came from TV series and forum discussions in his previous life, and a portion from an Ice and Fire World setting book (interestingly, Scholar Holly said this book truly existed in the Citadel, but only a very small number of scholars could read it), so he didn't know much about the real Westeros.
Being able to systematically learn this knowledge, while not directly improving his combat power, would play a crucial role in him achieving a higher status in the future.
Scholar Holly came from a small vassal house under House Tyrell. He had a high level of accomplishment in history and culture. This time, he was merely accompanying House Tyrell's party to King's Landing, and was not a member of House Rose.
Initially, Scholar Holly was very resistant and unwilling to teach Linde, not because he had an issue with Linde's status, but because he had his own tasks to do, and teaching Linde knowledge took up too much of his personal time.
However, as time went on, his mindset gradually shifted from passive to active. Sometimes, he would even call Linde into his carriage on the road to teach him lessons that weren't finished the previous day.
The reason for Scholar Holly's significant change was entirely because he experienced the joy of being a teacher for the first time through Linde.
The noble family Scholar Holly belonged to was located at the border between The Reach and Dorne, and frequently clashed with Dornishmen. Therefore, this family was extremely martial, and held other knowledge in low regard. Family members only needed to learn some noble etiquette and a partial history of The Reach's nobility, which meant Scholar Holly had no use for his skills in that family.
This time, Scholar Holly went to King's Landing despite the hardship primarily because a good friend of his in the Citadel wrote to him, informing him that Grand Maester Pycelle intended to compile and write a history of the Targaryen Dynasty, and hoped the Citadel would send scholars with bronze links to King's Landing to assist.
Scholar Holly was known in the Citadel for his specialization in history, which perfectly matched Grand Maester Pycelle's requirements. His friend, knowing he was unhappy serving that noble family, thus informed him of this matter.
On the day Scholar Holly received the letter, he immediately resigned from the noble family he served and set off alone.
Fortunately, he had good luck and encountered several merchant caravans heading to Highgarden, and traveled with them, arriving safely at Highgarden.
Afterward, in Highgarden, he learned that House Tyrell was sending people to King's Landing to participate in a martial arts tournament, so he joined House Rose's party.
Therefore, when Fotimo found him and asked him to teach Linde knowledge, he had no way to refuse.