I'm not sure if this has been discussed before beyond this, and sorry if it has and it's not feasible, but have you done any more consideration on adding data center driver support?
I have some tesla p4's, which are now selling for around $160 canadian, making it an extremely affordable, and capable little card, it has the same gpu chip as the 1080 just limited to 75 watts (no external power necessary, you will need a 3D print cooling shroud and a 40x20mm fan, mine by noctua runs silent) and clocks restricted, although it is has 2 nvenc chips capable of H.265 8k and HEVC 10-bit, opposed to most consumer and professional cards only having 1 nvenc chip, making it a great choice for a plex server. My ideal setup would be to have this as my primary docker dedicated gpu and save a video card with video outputs for a vm, it is detected by the nvidia driver but plex crashes whenever defaulting to it to encode. I know it is difficult to get video games running on these cards, however, according to reddit posts such as this, the default data center driver has no issues running encode and decode operations. I honestly have no clue how much work it would be to include this, but I know I would greatly appreciate it, and with the prices of these cards seemingly only dropping, I would bet on them becoming a more popular home server choice due to their capabilities and especially efficiency.