I really enjoyed reading this article, Steve. I've begun using Azure Data Studio (ADS) a lot more often, frequently going to it before going to SSMS. That is because ADS gives me a much better coding experience than SSMS does. Perhaps, if I were able to use SQL Prompt it would be different. But I'm not, so ADS is just much better for me, when editing T-SQL. Just a couple of additional things.
I've used F5 in SSMS for many years. In fact, I thought that was the only way of executing a T-SQL script, if you wanted to use a keyboard sequence. I didn't even know about Control-E, until I read this article.
It is possible to save a connection to an instance on a server, without specifying a specific database. I've done that a lot. Mainly because I didn't discover, until late, that I could save a database within an instance, as a connection, in ADS.
Now for a question; what is a "server group"? I tried searching, but only got an unhelpful "GROUP BY" results.