Take screen shot within game on console's share button
Put in thumbdrive on USB port on system.
Go into Storage settings and select media -> choose screenshots and back them up on thumbdrive.
Put thumbdrive on computer and upload on image site like imgurl.
Edit: Oh you meant another way other than that....they used to have Twitter/X sharing option but they turned that off unless there's still a sharing option but I dont know.
For Switch its a bit more simple - you can transfer it to your phone.








