>>531044428
Depends, generally no because it's just postprocessing and not hdr from the engine itself like you can see on some modern games or with Renodx's native HDR mods (pic rel)
post processing HDR does nothing but make anything white or near white go full brightness, it's not real hdr, mostly useless and if anything hurts any games with white text on the UI. That is true for Autohdr/RtxHdr and also Retroarch or Dolphin's own hdr conversion options. When a game has proper HDR the UI has it's own brightness option so your oled and your eyes don't get destroyed for nothing (pic rel is an example of proper hdr, see the flames are 4000nits but the UI is at a normal brightness, this is impossible to get with postprocessing hdr methods)

Proper hdr displays are basically just OLEDs anyway and they give you 1/3 of the hdr effect automatically even on SDR content due to their perfect blacks. So there's little point in thinking about it..
HOWEVER some CRT shaders are meant for HDR and you get higher brightness through the scanlines which is great, and more vibrant colors, while likely still staying accurate. For emulation this is the best use for hdr imo.
If you have an LCD display with good FALD I would also just use HDR as much as possible, it would be an improvement in general since that'll get you more contrast and better blacks.

So if you want to use post process hdr despite the limitations you can also simply set the peak brightness to 200-300 nits in Retroarch or Dolphin, this way you get more brightness in general and better colors without getting 1000 nit text boxes.