Only enterprises are going to care about ESR editions, so they're likely already using older code. Any time they are going to need something like :has, they're

Only enterprises are going to care about ESR editions, so they're likely already using older code. Any time they are going to need something like :has, they're probably going to achieve it with js anyway. @property will be nice, but almost every initial use-case will be animation related. That said, I'm happy it's reaching baseline support since more powerful features can be built on top of it.