I use VSCodium every day, and recommend it over VSCode to everyone, however, due to microsoft's locked down plugins, particulary the ones related to remote development and debug, there are certain things which can be done with VSCode and not VSCodium.
It's worth bearing in mind for those considering switching.
This one is an alternative to the remote development tooling which doesn't work on VSCodium. It is certainly not a full replacement, but you get to poke around the files on the remote system and run commands over SSH.
Yes, but unfortunately if you want to use something like Okteto[0] it requires the microsoft plugin. There are other third party plugins and tools tightly bound to the Microsoft ones making them unfortunately unusable.
It's worth bearing in mind for those considering switching.