Recordable Blu-Ray was always in a bit of a weird spot, though. BR drives in computers never reached the level of market penetration that CD/DVD drives had; as a result, it never became accepted as a standard way of storing or transferring files. Given all the other options on the market, particularly flash drives and cloud storage, it just never found any practical applications.
(Nor did it help that, whereas CD and DVD drives were popular as players for prerecorded media, BR drives weren't. Support for playing BR movies on home computers was heavily limited by DRM, and streaming services cut out a lot of the demand.)
Yeah, that's fair. I have a few blank blu-rays lying around but I've never actually used them.
Playing blu-rays on computers has always been irritating, particularly on Linux. I'm actually not sure that there's a fully legal way to watch a blu-ray on Linux; it's not hard to do it, but I'm not sure that it's legal. I don't think PowerDVD with Blu-ray support is on Linux.
(Nor did it help that, whereas CD and DVD drives were popular as players for prerecorded media, BR drives weren't. Support for playing BR movies on home computers was heavily limited by DRM, and streaming services cut out a lot of the demand.)