The rant is probably around convenience. How hard is it to offer one-click migration of your data from one account to the other? I guess pretty hard, since they don't support it.
My example is Google Play Music, which they migrated to Youtube Music. They probably offered to merge accounts at the time, I don't remember, but I ended up with two Youtube accounts with different playlists that I couldn't merge or transfer data easily. I had to do an annoying dance to recreate my playlists from one account in the other.
The problem is Google Docs which you have shared with many people, Google Photos which has zero rated all my Pixel uploads and will become crazy expensive if manually migrated to a new account. My YouTube channels are tied to this account and a couple of Android Apps.
Calendar is maybe slightly difficult to move. But Email contacts and calendar aren't the problem. In general the problem isn't actually the "Workspace Core Services" that have the lock in. Somewhat funny because they are the ones going away. It is all of the other services attached to the Google account that don't have a migration path like Webmaster and Postmaster tools and Play purchases.
They make it incredibly difficult to manage domains. DNS is managed via a third party like enom. Enom itself just had an outage recently that affected all G Suite users [0]. Transferring your domain to another registrar is opaque to say the least. Arguably, these things, in combination, could be considered a dark pattern.
My email provider doesn’t have control of my domain. In my registrars settings I just put my email providers server addresses where they told me to and I’m under the impression that if my email provider ever jerked me around I could just go in there and change those server addresses to someone else’s with no input needed from my email provider.
Did google do something different with these accounts? I didn’t even think they offered a registrar service when they stopped letting you register free custom domain gmails accounts.
Google is a domain registrar since 2005 [0]. But that service was launched for public use in 2015. Before that though, Google used third parties (mainly Enom and GoDaddy) to provide domain registration for the public.