Do you have a recommendation for : calendar, Gmail client? Trying to see what users who are security/privacy aware use. Of course best to move of gmail but required as intermediate step
Discussion
FairEmail is a nice email client.
For Calendar, you could use a local app like Fossify Calendar or a calendar service like Tuta, Proton, etc.
Whatever service you use is up to you.
Proton has nice functionality if you just want to opt out of default surveillance and dont want to self host one.