With Git you can work in, well, at least twelve different ways. But people discuss workflows with some built-in assumption that of course everyone else is using it like they are.
FWIW for individual repos I don't even use PRs so the whole issue of how to merge them is moot.
The point? You’re not making sense.
This is a discussion. This is not your team pow-wow where the boss makes a show of hearing everyone out and then going with what he decided with beforehand. Or whatever your process is.
This right here is a discussion. It makes no sense to pull the “we all wear leotards because that’s the team policy”. That’s not an argument that I can recognize.
You should, in a discussion, make where you come from clear. If three comments in on the topic of X you say “but of course we use Y, how dare you suggest something else than Y?” then you’re not having an argument any more.