Video colors are blown out or over saturated for hevc and other export settings in premiere pro

Pr2022 has completely rebuilt color mananagement, and that wasn't well communicated to the users.

In past versions, Premiere was built as a Rec709 program, and expected CM to be done via the hardware ... the computer and monitor ... being Rec.709 compliant. Then they added "extended Rec.709", which had the capability to use HLG/PQ media, but wasn't fully HDR. And required a lot of external gear to get an HDR signal to the monitor.

That all changed dramatically with the Pr2022 release. Premiere is not a Rec.709 program any more. The new CM is based on the user setting whichever color space from the SDR of Rec.709 through Rec.2100 in either HLG or PQ that suits their needs.

So ... users now need to track the color space of your media via the Properties panel, and if needed make changes in the bin ... Modify/Interpret Footage and use the CM settings at the bottom.

You can use this to mod an HLG clip to fit a Rec.709 sequence, several other things.

And ... Premiere now has sequence CM settings ... a sequence can have a color space of several options from various Rec.709 through HLG/PQ options. Again, the user needs to check this.

Plus ... you need to make sure the scopes are set to the color space of your sequence, the scope's scaling options set also to your sequence (that's the lower-right drop down in the scopes), and your monitor set to what your sequence color space is.

Neil