I know that Daltono has uploaded his Gran Turismo 7 screenshots to Liketu at times and since it is the same platform he can share them through HGC

I did the same thing once but only once cause the next time I thought of showing off the extra special screenshots in the most fitting community. Of course HGC is the best fitting for gaming genre but I take HGC as the main branch of gaming genre where we don't just talk about some screenshots while this community can be a sub branch kinda thing, you know.

I even thought of naming the community as "Hive Gaming Photography" which would be HGP but I was/am confused and the title can't be that big.

...Because yeah, this really reminds me of that Pokémon Snap game I used to have for N64, where the legitimate goal of the game was taking nice photos of the Pokémon on stages. Just realized I haven't played that in a long while...

I bet you fell on your nostalgic moment with Pokémon Snap although I never tried that one so I can't understand how deep you get nostalgic there.

The only thing I'm wondering is whether cross-posts of photo-focused posts I happen to upload to HGC would be allowed here or not

Of course that's allowed here. I'm updating the post now with this, thanks for the reminder.
This community is mainly for the extra screenshots we wish to capture from the best gaming moments that we may not have the chance to talk in a post we're publishing in HGC but posts from HGC is definitely allowed to be cross-posted here.

Actually, I myself had the need of a community like this where I can just talk about the special screenshots when I may talk about the other part of the game in HGC. I see you already noticed my post showing off Miles Morales in the air and the photos that I shared there was stored for a long time as I was not getting the chance to fit them anywhere in a post.

I hope you understand my points.