Instead of ‘splurging’ on a dumb tv bc they’re more expensive now thanks to the data sompanies sell off of smart tvs I was considering getting a smart tv and dumbing it down. Is the way to do this never connecting it to the internet? And is that the only way?
Sure. Choose one that still let’s you default connect to a HDMI input (or display port if you are really lucky) and connect a KODI box to it. Either a Raspi 4 or something similar will do.
That solves most of your problems as the smart part is on the Kodi Box and not on the TV and Kodi is (mostly) OS and can be configured to your liking.