I have been using 2019 SP1 with success. Its not perfect, but its functional. To get mine to work I did have to jump through some hoops:
1. Uninstall existing 2019 installation
2. Trash leftover 2019 files in the Library folder
3. Reinstall 2019 SP0 downloaded from Service Select site.
4. Disconnect from internet, launch updater. (When connected to internet updater utility gave a message that it needed to be refreshed, downloaded something, then shut down and did this over and over. I discovered disconnecting from internet made updater launch correctly).
5. Reconnect to internet, check for updates, download SP1.
6. Successful install of SP1 and I was up and running.
That being said, it does seem that having the VW release timed to come out after the macOS release would be a prudent choice, as forcing people who are traditionally early adopters to wait to update their OS is annoying to say the least. The same people who downloaded VW2019 the morning it was released are likely some of the same people who are going to download the new macOS within a week of release.