Mixed feelings on this, as a user of simplelogin, proton and standard notes as individual services for the last 4+ years I love them all, and trust proton.
However one of the key reasons for choosing those services was they were isolated, and without risk of vendor lock in or single points of failure... Depending how this goes it could be great, I just hope they don't force/push integration with proton too much. Maybe I'm just being a FUD pusher. Certainly equally a chance this is great for both proton and StandardNotes. SN has lacked development on a fair few plugins recently so hopefully this aids that.
This is very true, and SN does do that. That said I have hundreds of notes in SN... Its essentially my life at this point so its heavily integrated and would be both a shame and a pain to migrate! Here's hoping its positive for all involved though and this is a needless concern!