Thinking About Switching

So after numerous moves from Microsoft that's made me lose trust, (many of which I'm sure users here who've switched are aware), I've decided to use Batocera-Linux. The reason for this choice is that I do alot of emulation and it makes sense to have a distro that supports this out of the box, plus they now have a built-in desktop for it. With that being said, I wanted to know if there's anything I should prepare beforehand such as files or any useful tidbits of information before I make the switch. I"ll probably run it off a usb stick as a trial just in case there's any catastrophic issues and if all's well I'll run it off my ssd.

Anyway, is there anything I should consider before switching over? I already know the compatibility for devices and other numerous things are lower than Windows, but there are probably numerous things about LInux that you don't find out until you're actually in there. So I guess what I'm trying to say is there any deal-breaker changes or things about Linux that changes user's mind I should know about before I start making any preparations to switch over? If there's any questions you need to ask me to assess I"m happy to answer. Thanks in advance for any info!