New to Roll20, will it work on new MacBook Pro 64 bit MacOS Catalina?

I have searched for Mac system requirement on the Roll20 website and searched forums. Can someone tell me if Roll20 will work on a Mac running 64bit macOS Catalina? also, will my running this free player version work with a DM running either 32 or 64 bit Windows version?  Excited to try for the first time with Virtual Gary Con in a week. 

Roll20 is browser based. If your computer can run Chrome or Firefox, it can run Roll20. I can connect with my Mac which runs Mojave (because Adobe CS), and even my Chromebook. I can even use my iPhone (though it's not supported and the interface is tiny ). The only issue I have seen is some users who report slightly blurry nameplates due to the retina display. That can probably be fixed with a user setting somewhere, but I don't have any hands on experience. I'd suggest creating a game (it's free) and experimenting.

I use a 2018 MacBook Pro running the latest Mac OS. I don't have any issues in Firefox or Chrome.