Wouldn’t getting something like a Kobo and syncing with Calibre be a much easier/cheaper option?

If we’re going to call out honeydew, can we at least address the blatant disinformation campaign apples have been on for the past few decades?

Did a search for ubuntu “integrity: problem loading x.509 certificate” and the first result indicates out of date bios certificates needed for secure boot on older laptops. Disabling secure boot seems to be the suggested fix.