Something I didn't think about until I saw someone making a post about it on Mastodon is that you may not have to worry about just YOUR PC, but what happens when you are on a zoom call or using another screen sharing app and THEIR PC is taking screen shots?
Now you just can't worry about your own machine, but every machine out there that might interact with you in that type of way could be capturing data. And if you accidentally have your email up or maybe a password manager, could their PC just be gobbling that up without you knowing?