This is normal. This is a topic with a lot of complexities if you drill down into the details and history, but the tl;dr is certain system processes and other programs will preferably write data to swap because it’s so infrequently needed, and avoids massive slowdown if swap is needed, eg RAM filling, hibernation.
If you’re absolutely sure you’ll never exceed 32gb of RAM usage, you can turn the swap off. But you’re unlikely to notice a performance boost, Linux does (largely) know what it’s doing, moreso than you or I.
The TankieTanuki link is a good place to start to learn more if you really want to tweak it.
For sure, and it’s a chill question. Unlike the other comment, I totally celebrate your fucking about with settings you don’t understand, it’s great. I’ve practically made a career of it myself :D