How can I convince the GF to switch? She only plays The Sims and the occasional hentai game; her Skylake i5 and 1050ti are more than adequate for those tasks. Yet she refuses to try Linux; won't even let me install LTSC to buy some time.

I think she just wants an excuse to buy a new laptop. She's the kind of person who replaces her shower curtain every six months, rather than do the sane thing and simply wash it. I'll never understand such a wasteful mentality.