I disagree. The advice to disable SELinux, like your assertion that it's too complicated for ordinary users, belongs to an older time. It's time to lay that myth to bed.

Sure, if you're messing around with k8s and doing fun eBPF stuff you are going to need to be careful. But for just installing an OS, running it to do some web-browsing, gaming, image editing, wordprocessing? I would be highly surprised if the defaults do not work.