This just puts the focus on another problem then: Tiny companies get eaten by big players [0] until you don't have any choice or it is too much of an effort to you to switch to an alternative solution.

In my opinion it would be helpful to acquire knowledge how to provide services on your own or to connect with people to share services (like a NextCloud).

On the market you will not find a provider that can guarantee to be it's own master or exist at all in years to come. Also I have the bad feeling that a lot of providers try to prohibit data export to keep you caught in their eco-systems (e.g. see Apple deactivating the _basic_ function to export contacts to a SIM card).

So now it is early enough to find a way to own and protect your data but in a few years it may be much worse and some day probably impossible or at least impractical.

The upside to this is that no single service will just "go away" and as long as your NC-server is running you will have access to your services.

[0] e.g. https://en.wikipedia.org/wiki/List_of_mergers_and_acquisitio...