I haven't run in to that lately, but an issue I find much more annoying is the lack of support around re-locking with a custom root of trust. I think a few others support it, but I've only seen mention of it on the Pixel phones (and I won't buy Google hardware after they wouldn't replace my Pixel 3 that was bricked by their EDL hardware issue).
According to John Wu, author of Magisk, it is not possible anymore to hide the bootloader/safeboot status via Magisk (https://nitter.lacontrevoie.fr/topjohnwu/status/123783055552...). I don't think that situation has changed.
This is Widevine DRM, most devices with the Magisk workarounds will get at least L3, which gives you standard definition netflix. Need L1 for HD and only a few phones unlock bootloader reliably and keep it (my Oneplus 8T does, 9 pro does not)