Yeah and thats more than enough for actually well programmed apps. Not to defend Google out of all, but bro, its a phone, for example, 13gb runs Minecraft 1.8.9 with about 250 to 350 mods it is enough and ram needs electricity permanently, more is too much, it would go with significant battery impact, also, free RAM is wasted RAM, 90% usage is perfectly fine and android was always designed with that in mind.
Idk what apps some people use, but 13gbis enough, seriously, and if not consider why some shitty app uses more ram than a great game with mods, its either hilariously bad Programming or intentionally doing it for some reason.
I am however not happy that this comes because of LLM shit. 3gb for a os is ok but fuck, we don't want your "ai" Google.