Just to add my two pennies (that's a saying, right?), I do use VS code as my default text editor. Professionally and for other projects in C++/C# I use the full fat visual studio. But for scripting, config editing, hex files, todo lists and such I use Code.
I've never been much of a person who needs to shave off every possible second in my workflow with macros and plugins, my brain is just not fast enough to out pace my hands, and the command palette does pretty much all I could wish for.
I of course wish it was fully open source, but for being the only Microsoft product I daily it isn't too bad.
Last time I checked codium out it couldn't support the vs code marketplace/plugin repo. Is this still the case? I should take another look at it either way though :)
Edit: I answered my own question by reading some more comments. So looks like there are alternative plugin registries. I'll definitely have a go at switching now.