I think GP's point was specifically Google's famous history of starting projects and then shutting them down within a few years. Old Rokus still work. My Roku 3600 is eight years old.
My old Roku is now so sluggish and slow, it's a paper weight and I had to buy a new one.
All consumer electronics are designed to be disposable. GP's point was a grievance with consumer electronics at large, not Google's. What other consumer electronics allow you to replace the OS with your own, or receive infinite updates forever? Zero.
Chromecast lasted for a decade, and is "dead" only in name. None of GP's statement is on-point for a typical "Google kills things all the time" complaint.
If we're going to throw shade at Google, make sure it's about legitimate things.
My Chromecast is 11 years old and still works fine. Sometimes YouTube thinks it can try playing back the higher bitrate 4k version of a video and it'll get choppy but I've never had issues with 1080p content.
My older Roku 2 is effectively unusable as most apps are just outrageously sluggish and videos often crash loading.