the possibilities are neverending!

you are able to add updates to your games in ryujinx! it's handled very similarly to the way you get a game in the first place. you'd have to find and download the update's .nsp file (which is separate from the game .nsp file!), then load it into ryujinx. you can create and set an updates folder to have ryujinx handle this automatically, just like it does with games:

you can also manage a game's updates by right clicking on the game and selecting "manage title updates"

which from there will allow you to manually add updates, remove any updates you've installed, and select which version you want to play!

as for finding the update's .nsp file in the first place... floralith hosted 1.0.1, but unfortunately has since gone down, and i've needed to find alternate methods of getting update files. i got version 1.0.2 from a reddit thread that i can privately send to you if you need - i'm a little wary about publicly posting these things now that i've inadvertently caused so much trouble for floralith's host, and a reddit thread isn't the most stable way to get these files as it might get taken down or edited in the future. you can probably find it yourself pretty easily with some minor google searching though, as that's how i found it in the first place lol.