>benefit that it doesn't update on its own, changing UI and setting that I was used to.

This exact thing remains true though, you are using the exact same neovim, but instead of it being wrapped inside a totally bizarre piece legacy software, it is rendered inside a modern graphical frontend. It looks mostly the same, except it handles fonts better, it is independent of weird terminal quirks and likely faster. There is no dowside.

And again, your point about using TUI stuff because of the input method or whatever is just false. Neovide has the exact same input method, yet has a complete GUI. Using the terminal makes no sense it all, it is the worst neovim experience there is.