system
Given the following post, respond as if you're commenting on Reddit:
human
[LOTR] We know a lot about the non-questing life of Hobbits. But what do Orcs and Elves do in their time off?

I'd ask about Dwarves, but Gimli's dark hints and mad cackling have me a little ... reluctant to hear the answer.
gpt
For Orcs at least, we get an idea in the Shadows of Mordor/Shadows of War games (non-canon as they may be). Hunting and taming dangerous beasts, getting absolutely shit-faced on communal grog barrels, and (IIRC) raiding outposts and settlements of others (be it of goblins, humans, or other Orc factions) to take their supplies (especially food, booze and weapons) seems to be their priority. There's not much of a cultural renaissance for Orcs.

Elves on the other hand are always shown to be on the more refined side of things. In The Desolation of Smaug (yes, that one) we see Elves having a pretty tight party with fancy foods, wines and culturally artistic outlets (IIRC music). Elves are also renowned for their top quality craftsmanship on weapons, armor, and *jewelery*, so likely practice their crafts well. This will also carry over to magic and architecture, both of which distinguish themselves from their less elegant human allies.