So, apparently you can easily get a Google account without telling Google your phone number if you have either an iPhone or a phone running Android 11:
https://www.alphr.com/use-gmail-without-phone-number/
... but the web interface definitely does not let me, and on my LineageOS phone (with microG), the option definitely does not exist. Seems like they only allow that if they can already get your stuff in other ways....
In related news: I'm still trying to figure out a privacy-friendly way to have a shared calendar online which can be edited by multiple people.
(in my case: for a shared practice space. So everyone can enter when they want to use it, and see when someone else is planning to do so.) -- any ideas?
Most CalDAV providers don't seem to offer that without either making it public or everyone requiring a (often paid...) account, including the provider I already pay for :(
@Mr_Teatime You can use OwnCloud/NextCloud Calendar for this - assuming you'd create a separate account for the calendar and share the credentials in the group.
@Mr_Teatime For one, you can just search for such. It's pretty common.
If you have the chops, then a small Hetzner VPS for €5/mo would do.
Just from the top of my head, another idea could be to make an account our instance Qoto.org, it comes with access to managed nextcloud, c.f., here: https://qoto.org/about/more