So I built siltop: btop's calm, with eyes on the silicon. Real power, clocks and temps straight from the SMC and IOReport, no sudo, about 1.3% of one core (btop is ~2.5% on the same machine).
It also tells you what's wrong in plain words ("Busy: rustc using 9.1 cores", "Hot: fans at 80%") before you read a single graph.
10-second try, no load needed:
brew install cloaky233/tap/siltop && siltop --demo
Curious what your Mac shows. M1/M2 Ultra and M5 Max owners especially, I haven't seen yours yet.