Hi,
I keep my styles on a couple of sandisk cruzer fit mini nano USB . They’re tiny so they don’t stick out the back too far, don’t get knocked .
Have them permanently plugged into my laptop, used them in my korgs too. Maybe a bit more fiddly to remove because of the size, but I find them great.

I have the 2, one for backup, and one for the main. So simple to do copy and paste, so not hard to keep one as the duplicate copy..

Have one Folder “ Style Library “ in which I keep the dozen or so sub folders with my style library.

Then I have another Folder with the styles etc that I actually use. My USER, folder.