I'll never buy a ThinkPad again after the T16 Gen 1 that I have at work. That thing was overheating from day one, absolutely terrible for a 3000€ business laptop.
Besides Lenovo's shitty BIOS issues (which they have tried to fix about five times in the last 3 years), sometimes boot-up still takes a minute to get past the Lenovo logo.
I don't even have a lemon or anything, several coworkers have also complained about the same issues. One got so angry he smacked the laptop a few times on his table out of frustration (no actual damage) and forced IT to give him a different more powerful model with better cooling.