In Destiny 2, at least the PC version, it is almost impossible to take screenshots if you are playing in Fullscreen with HDR enabled. You can't use Windows screenshot shortcuts, PrintScreen screenshots don't save with HDR enabled, and Xbox Game Bar photos are very oversaturated with HDR on. The only solution I can see to this is the addition of some kind of photo mode into the game; so that we can have a native, in-game tool to take screenshots.
(p.s.; the new season is really good so far)