I just do what is easy for me, some things are not worth the hassle of switching to a privacy focused alternative.
For example replacing google drive with Syncthing was really easy for my use cases. Gmail was easy with my own domain and a good email service.
Other things like facebook/reddit, banking, telegram, discord, etc… I don’t worry about it because the hassle factor is extreme.
Yeah I get them confused constantly hah.
At least with your own domain name and IMAP, changing email providers is pretty quick and easy.