Apple has never supported Blu-ray at all – presumably they thought their iTunes model was better for them and customers; it's like Apple to make that kind of single strong choice. But I never cared for digital downloads of movies, so I eventually invested in an MakeMKV license and an affordable Blu-ray reader.
A great deal of time, effort and money later, I'd replaced the unreliable optical drive with a second, which also stopped working on me.
Meanwhile, watching sales on iTunes for movies I'd already purchased on Blu-ray yielded ultimately yielded much less expensive and much more convenient results. Since then, I've sold almost all my Blu-rays, accepted the sunk cost of the licence and the drives, and re-bought just about everything digitally when on sale. Now Apple's started upgrading some of those files to 4K at no extra cost. For my money (literally), it's much better and I wish I'd seen it sooner.
For people who still want the physical hard copy and the totally unencumbered ripped files, Blu-ray is still possible with that much time, effort and money – but there's my quick comparison of the approaches for you.