12GB of VRAM is more than enough for games.
No it is not. Maybe back in Turing times it was enough but not anymore. I had great results going to 3090 from 3080ti in DCS World VR for example which is well known for stuttering with under 16 gb vram cards. Also even many older games with 4k texture packs need more than 12gb.
Yes, you can get away with it for _most_ games for now, but for how long.. But how useful is that amount of vram on a budget card since it propably cant run the games requiring that much vram that well anyway.