The Unicode standard just specified a "wheel". A particular amusing (read: drama inducing) case is with the 🔫 emoji: Unicode specified it as "Pistol", but depending on your font (and version), it can either appear as a water gun, or a musket or revolver.
Unfortunately (or maybe fortunately), all major vendors have now switched over to a water gun, so no more amusing forum threads cases by the different meanings.
So in addition to the interpretation being unclear, there is also no real standard for emoji.
Displayed as a classical wooden wheel for a dray or modern car wheel with a tire depending on the platform. May be used in the context of "reinventing the wheel."
That is so weird. And I just tried it on Firefox and got this:
So it's either a Chrome thing or a Mac and Chrome thing.
Don't hate, I have to have Chrome for work and it's a pain to run two separate browsers. I'll end up doing that eventually when my adblockers no longer work though.
Inspecting it, here on my instances Feddit.de rendered theme shows two fonts in use - a fallback for the emoji because I assume Lato does not include it:
Appears to be an old fashioned wooden spoke wheel. A cart wheel, as in, the wheel of an old cart. Connotations would presumably be mostly related to "rolling".
If your OS doesn't support the emoji, it shows an empty or placeholder image. If you see that icon, you can copy it to clipboard and paste to search here: https://emojipedia.org/
It is the special group club for advanced Linux users. Like Disney's Club 33. You have to know Pam, offer hash, and keep a secret shadow file to get in.