Switching away from Pocket

I've been using Pocket (the bookmark manager) for a long time, either since around the time it was added to Firefox in 2015 or around the time Mozilla purchased it in 2017. I can't remember precisely and as of now I can't even check, what was my first stored bookmark. Pocket always was a bit in a special place since it was (besides email and social media) perhaps the only service storing personal…