Also for the record, I have experienced an 8GB Mac Mini run Firefox with at least 20 tabs, Jetbrains Rider with code open and editable, Jetbrains DataGrip with queries, somehow Microsoft Teams, MS Outlook and didn’t seem to have a problem. Was also able to share the screen on a Teams call and switch between the applications without lag.
Windows OS couldn’t handle your application load? Eat a penis, Microsoft. Fucking clown memory management.