Heck my Mac-mini overheats and throttles itself not by reducing the CPU clock but apparently by having a system process just take ownership of the CPU and NO-OP things until the system cools down, bringing everything including the UI down to a crawl.
An absolutely horrible user experience.
The famous display snow that happened for years when plugging external monitors into Macbooks.
3 months in and the touch bar stopped working, it just doesn't light up. It's a work laptop so it is going for a replacement, backing up my data as I type this.
For example, perfect butterfly keyboards.