People do this? I guess it's fine if your commits are <100 lines of code but it seems needlessly concise, to the point of losing information.
Personally, almost all my commits follow email styling: first line tries to be concise, newline, then a list of what changes have been made along with a brief justification. Feels like a bare minimum unless you'd rather tie everything into pr's (which can't be seen from command line). This is why for people unfamiliar with git I refuse to tell them about commit -m because I feel it leads to undocumented history when you need to audit code.
disclaimer: I tend to work on long lived projects (5+ years)
Edit: bonus point that I forgot - by having a detailed commit log that reads like prose, it's easy to explain "everything you guys are working on" to the non technical folks.