The guilds and communities button regularly does this even though the guild is small and there isn’t any content or chat history to load, even after repeatedly opening the same window during the same play session over a period of few minutes.
Sometimes it takes about a minute for the game to start responding again but the issue lasts much longer than in the Dragonflight version of the game. If lucky, your screen will unfreeze eventually, otherwise the game will force close itself.
For comparison, the only other time my game froze is when 100 adds spawned on the first boss of Mythic SOO and the game had to calculate 20 different gem effects for a full raid in a small and tight area (some that played BFA may understand the problem).