Hey there,
I am a Unity beginner and I am working on a small project, but if I want to import an asset from the assetstore or when I try to run the game, Unity uses up 31 GB of ram and I have to force quit it. I am on a M1 Macbook and the project size is only 7 GB.
Editor version? If you’re not on the latest patch level (third digit) try upgrading.
Particularly because M1 macs had plenty of issues with Unity (or vice versa) in the early days I would recommend using at least 2022.3.
If this includes the Library folder it’s reasonable, but if this is only the Assets folder size then it’s already quite heavy for a solo dev project. I mention this because you may come back complaining that the editor is slow when you have several dozen gigabytes of Assets in the project - a complexity even most AAA game projects don’t ever reach. 
Same issue. Windows 11, 6000.0.39f1. Fresh project. Importing assets (Photon Quantum in this case, but have had this issue with other imports) balloons the amount of RAM consumed until it crashes.