Likewise, I’m far less hesitant to accept buying digital console games than video because I generally can expect that once I download a game on my one device that I’ll pull out the same device whenever I want to play it and it’ll keep working when offline and even after the servers are gone, until the hardware fails. Modern games’ physical releases rely so heavily on updates and DLC that the cart/disc you get isn’t complete anyway; buying physical effectively becomes a digital game with an extra point of failure (and partial resellability). PC gaming complicates things but at least some games are available completely DRM-free there.
With video content sold online, streaming directly from some server is always the focus. As soon as the server disconnects you become unable to watch by default. Even if some service lets you pre-download within its app and watch offline (which probably won’t work indefinitely without checkins anyway), that’ll defeat the portability expectations for watching your videos on any device interchangeably.
Blu-ray video isn’t ideal considering you cannot watch it on a phone, tablet, or linux system without cracking its DRM, but that’s still way better for lasting access than anything else major movie/TV studios are willing to let consumers access without piracy.
Legitimately playing 4K blu-ray video on a PC without cracking the DRM requires an insane combination of requirements:
Meanwhile MakeMKV can rip them on basically any Windows/Linux/Mac system with a compatible BDXL drive.