To be honest, all operating systems have their issues, and every browser has its issues.
Macs, traditionally thought of as pretty bulletproof, have an increasing number of problems.
I have been using Edge a lot lately, and find it as solid as any of the usual suspects, though rather restrictive.
My go to option is Waterfox, but making sure everything is compatible and consistent across all the popular browsers is still necessary despite most of them being built fairly similarly.