For me, it was when Kru and Gambit hugged after that insane semifinal.
yup KRU and Gambit and Acend and Gambit hugs in end of semifinals and finals comes to my mind first. KRU vs Gambit was just amazing and long series so hugs were wholesome, and Acend vs Gambit was finals and it was EMEA vs EMEA matchup and Gambit aka Masters 3 champions kind of "handed over" the champions title to Acend.
Some of the press conferences have some really nice moments, when benkai pretended not to speak english and everyone laughed after was something that really comes to mind. KRU vs Gambit especially
Just in general, especially in EMEA and APAC when teams lose to each other they are really supportive and encouraging. love seeing that a lot of these players are close, care for each other and wanna see each other succeed.