That advice doesn't hold up very well when in recent years we've had multiple instances of a BIOS update being necessary to deal with the problem of "the CPU gets fed too high a voltage and dies prematurely". That's happened to both Intel and AMD desktop CPUs.
It's a real problem that BIOS updates for consumer systems never come with a meaningful changelog, so evaluating whether a particular update is a good idea or not is basically impossible.
I would strongly advice against buying HP laptops if you want to install linux because MX linux worked well on mine pre-owned HP, Zorin OS worked well but somehow I could not install AntiX linux and secure boot of HP troubled me too much and I could install OpenBSD on it but each time I would restart then it would kernel panic and I would havento reinstall. Combined with a long holiday when I left it at home. Now my HP is practically bricked. It is not starting
It's a real problem that BIOS updates for consumer systems never come with a meaningful changelog, so evaluating whether a particular update is a good idea or not is basically impossible.