@Tutanota Librewolf with my own instance of SearX. Tuta and Proton for mail. Yubico and Aegis for MFA. Self-hosted Joplin for notes (can't imagine living without that, and still trying to figure out how I did before I knew about it).
Messaging over session only, and Molly for what few Normies I haven't been able to convert (Signal).