Is that really a problem though ?

Unless you’re doing something special, you can be fairly certain that universal binaries will behave well on both platforms, that’s what Apple guarantees. They expose one API, which can be executed on multiple hardware architectures.

If you’re doing something special, like an image editor, or a game, you might need to test performance, but you couldn’t really do that with Rosetta either.

Universal binaries work well. And as long as they exist, apps will most likely run just fine on both Intel hardware and Apple silicon.