the questions in the title really.
If you want to upload here in the forum then you just copy the game link and paste it here .. Hope this help's
lichess.org/paste import game herelichess.org/@/IllianMTG/import - can find the imported games on your profile under imported games.
Go to tool and click on "import game"lichess.org/paste
You can't post in the forums yet. Play some games!