Best to look at federated instances as more official, set-in-stone subreddits. They all (usually) have rules and most of the time the instance is not responsible for a single person doing actions like that. If a kick or ban is also swiftly given, that usually also voids the instance owners of any illegal content.
My primary computer: (NOT LINUX) Windows 10, I know, shocking. Laptop for programming: It’s an old HP Pavilion from 2015. Linux Mint with i3. ThinkPad for fun stuff: Artix Linux. Big ass Cisco servers in my room: openBSD emulation.