I want to offer supporting evidence. Had a Vizio that is closing in on a decade old and runs great. Was given a TCL 4k Roku TV that is a piece of crap. Can't complain too much since it was free, but I'll never buy a TCL or Roku TV. And I used Roku's for almost a decade since I was an early cord cutter.
Both of the early cord cutting companies that drove all this are on the decline: Roku and Sling. Google especially has stolen a lot of marker share with Chromecast and YouTube TV, respectfully. Kind of sad to see it happen, but monopolies are the norm now.