Does anyone even use hibernate in 2021...? Every windows/linux machine I've tried using it on just results in a terrible experience. Generally my system just hangs or takes 10+ minutes to save to disk or restore (despite having a modern workstation with 32GB+ of RAM and a nearly empty high end NVMe SSD).

It's been the first thing I've disabled for years, power management is decent enough that a desktop system will draw a marginal amount of power at idle even if you don't use suspend or hibernate.

Of course, on my macbook it 'just works' and I've left everything default in terms of power management, I assume it does something similar to hibernate/S3 sleep but it always comes back instantly and without draining the battery while closed. I carry it in a backpack commonly and have never had issues with it being hot when I take it out.