For HP laptops you can just a flash drive now. You can extract the bios file and signature file from the bios updater.

I've used HP laptops in the past, my first one only lasted like 2 years before the motherboard randomly died, the case was falling apart within a year of usage, the WiFi was shit and getting it working on Linux was a pain. My next one is better which I just started using again, although right now it's barely in tact as a desktop and not usable as a laptop and certain components on it also suddenly died after 2 years (and the touchpad was already wearing down after only a week). Additionally I can't enable secure boot on it because they locked down the BIOS, some of the components don't work on Linux at all, and the SSD/battery is difficult to access and for whatever reason it rejects certain well-known SSD models. It's also not a well known model so there's not as much part availability, and while I could repair it there's enough stuff that's broken on it that if I could get a better laptop for $200-300 I'd rather do that.