I don't know what's happening at github, but even the tree page rendering is annoyingly slow now. I wish they stopped ruining a working product by bloating it up with unnecessary 'features'.
I can understand why it excites you. But I'm old enough to recognize that if you cede control of your offline tools like IDE to them, they will eventually exploit it to make money by ruining your day. I'm perfectly happy sacrificing a bit of convenience to protect myself against rent seeking in the future.
Honestly in this day and age where everything runs inside containers, you should be able to do that in your home server. Distrobox proves it. Even a good alternative to vscode exists - theia by eclipse - that's designed to do exactly this.