Yeah it was fun in the beginning, after all who never thought about being transported to another world where you ate a big hero with swords and magic?
But what the hell, I’m pretty sure there’s more isekai now than other genres/settings. It’s gotten to a point that if I see the tag I just move on.
Make an Isekai where the video game is a crappy CRPG from 1980 where the player has human intelligence but the other characters are all wooden preprogrammed NPC. The challenge is having to work out how to operate within the bounds of a poorly designed world.