I really like Filen. They have an open source app on all operating systems, including Linux, which Proton Drive still does not support. They also recently added support for Rclone.

Signal still requires a phone number. What was added is usernames for contacts, so you no longer need to give other people your phone number for them to contact you. It is a step in the right direction, but it would be great for them to get rid of the phone number requirement all together.

Thunder and Voyager are my favorites on Android, but Mlem on iOS is my overall favorite.

Never. I have latex foam pillows that are a solid block, so there is nothing to fluff. It took me a while to get used to how firm they are, but I absolutely love them now.