I use a Windows PC and need to use a Mac occasionally for my work. I keep delaying updates on the Mac because I'm terrified of it not coming back up, and I don

I use a Windows PC and need to use a Mac occasionally for my work. I keep delaying updates on the Mac because I'm terrified of it not coming back up, and I don't know a ton about MacOS. It doesn't help that the Mac is currently remote and I'm working from home.