I like that I don’t even care about it. The main user of it is my wife, who is non-technical. It’s the only computer she uses, for everything (browsing, shopping, banking, word processing, printing) for 20+ years, and if you ask her which distro it is, well, she doesn’t know what “distro” means.

She doesn’t “use Linux” because she wanted to “learn Linux” nor to “try this distro”. She uses youtube, instagram, the bank site, amazon, libreoffice, etc. The closest she gets to the OS is accepting the package manager prompt to update.

I wish one day most people can answer your question with “I don’t know, whatever came with my computer”, because it’ll mean all of them are as easy to use, as unobtrusive and as unimportant to the user as possible.

But to finally answer it, kubuntu, some ancient, still updatable LTS version (can’t even recall when I last upgraded), because it was easier for my wife to adapt, coming from windows 95 when she started using it.