I literally end up doing this for things I'm actually paying for when I want to watch the high quality version on a PC. I haven't owned an actual TV in years.
This infographic is a bit out of date, but you get the idea https://i.imgur.com/IrxoHI3.png
It's overall a vastly superior experience.
Stop spreading misinformation.
There is a significant segment of the internet that thrives in the gutters between paid services, straight up piracy sites, and actual "dark web" sites that require TOR or other specialized access. The restreamers that live in those gutters are questionable at best, straight up illegal at worst, and fund themselves through fraudulent ads, or legit ads for sketchy or dangerous services and sites.
It is entirely possible to use those sites safely, just like it's also possible to navigate dark alleys in major urban centres in the late hours, but that doesn't make it a low-risk activity.
The only danger involved here is in the actual downloaded content. There have been a few codec/filetype vulns for video files in the past, sure, but one that deploys through the browser through a local Plex instance would be pretty interesting, to say the least.
