karut If you prefer to have a "secure" system that you can't use due to eyestrain, well that's a choice I guess.
"Security" is the most overblown term thrown around in computing. 99.9% of PC security is between the chair and the keyboard, and Linux itself is such an insanely small vector for attacks it's laughable to be concerned about it.
My daily driver laptop I use around the house runs Windows XP. Never had a "security" issue with it ever. Don't install software you don't know, don't click on links in in email, and you are just as secure as any fully updated "secure" OS. This isn't the movies where top secret NSA hackers are going to run 0 day exploits to get into your PC and download the launch codes. 99.99% of PC "security" threats are scammers trying to bilk you into buying them gift cards or crypto