Maybe its a shared device that kids also use? We have a laptop that’s shared amongst everyone and I constantly come back to finding random desktop wallpapers from Minecraft to Undertale to Pokemon and I think the latest is Transformers related lol.

Yes. I have an NVME as my OS drive but most of my home directory (Documents, Videos, Pictures, Music, etc.) is on an older large data HDD. My .config and anything else is still on the NVME. I use fstab to mount the directories automatically.