Just to be clear, by "non-Nintendo" consoles, I'm referring to PlayStation and Xbox.
Don't get me wrong, I enjoy my Switch, more so than my Xbox One (which I use primarily as a Blu-ray player these days.) Nintendo does often have better exclusives than
Microsoft, and I'll continue to invest in Nintendo consoles as long as they deliver superior exclusives.
PC gaming is far more enjoyable than consoles, anyway. You can either build one yourself out of new and/or used parts or get a pre-built at Best Buy, Amazon or eBay. Either way, it will typically surpass what the PS4 and Xbox One can do, even their "4K" variants (depending on your budget, of course.)