If a security flaw is discovered and patched, it is a good sign the manufacturer is standing by their product and providing support. AFAIK, tp link does push regular fw updates for their omada gear. I’ve had two in the last month.
In your case, I’d open a support ticket with that issue and see what tp link thinks directly. If you don’t like their reply or are ignored, you will have your answer on whether or not you should switch.
Biased as fuck lol. Installing windows is not difficult. I did it first time at the age of 8 witn WIndows 98 and their newer installers are made so the general public can do it. And the bloat and spyware? Thats windows dude. Its not meant to be your OS, its meant to spy on your ass at the benefit of being familiar and (relative) easy to use. Anything you do to it post clean install is your own tinkering. Linux distros are great yall, but install difficulty is not a metric I would use to attack windows. Comparing between distros makes sense.