I sat down and made a bunch of spreadsheets. You can start with a full list of all the apps on your phone, and which email and phone numbers you used to register (if that is what you did) with them. I wanted a clean separation so I had like new numbers and a paid email account for use after the shift.

I marked down every app that had data that I wanted to preserve, particularly those without cloud based storage of that data (things like online marketplaces dont really have any relevant data you need to manually copy over to your new phone). Apps like netflix does not need to be migrated.

I also wanted to replace youtube with newpipe and for that I needed to port over my subscriptions (over a thousand on youtube) so I sat down one day to sort just that part out and only chose those creators I thought I really wanted to follow (No more slop!). I got it down to like 300 that day.

Sorry for the word wall, I think I got carried away.

Drop me a message if you have any questions about the move or any blockers you think I could help with. Always happy to help with these things.