Do a dual boot, that's what I did. If after some time you feel like the windows partition is unnecessary, delete it. If after deletion it suddenly seems to become necessary, it is always possible to reinstall windows, there are tutorials online on how to do that.
Floorp, I use it and I love it. It's especially great for Opera refugees, it has workspaces and stuff. Soon Firefox will support tab groups natively, and then Floorp will be perfect. It's a Firefox fork though.
Shouldn't it be the other way around 😏