My laptop doesn't start anymore, so I wanted to transfer this data to another laptop. What is the best way to proceed?
Remove hard drive and then connect to an adapter cable, then connect to a new laptop and copy.
Is it somehow possible with a USB stick?
If you have a little technical experience, you could build a USB stick with Linux, from the Bpoten and then save the data about Linux.
Yes, but you need such an adapter to read the hard drive and it has to get out of the old laptop when it no longer works. It doesn't matter where you save the data.