Go with the “Computers For Dummies” option.
Get a Chromebook. Cheap and virtually maintenance free.
BTW, Windows 10 has a simple option too. It’s called Windows 10 S. It works kinda like Chrome OS, which is the OS behind Chromebooks. So, you could also get a PC with Windows 10 S installed and leave your worries behind.
What is chrome supposed to add as a benefit? It is on my wife’s computer and seems to cause a lot of frustration. I don’t understand it.