Earlier quoted context omitted.
In my case, I am a very senior member of my team so 25-50% of each day is spent helping and/or teaching teammates. In situations like that, it is useful to be deeply familiar with the tools that your teammates are using so you can tell them exactly what to do. For example, if I'm teaching a new hire to set up their vscode it is not very helpful to tell them "now you need to activate the python venv". It is much more…
At some point, shouldn't installing a venv be a pre-requisite to actually be hired as a dev?
The point of the parent is that in an ideal situation, where everything works without flaw, theoretically it makes no difference which tools everyone uses. In real life, you having a homogeneous setup across a team makes the sysadmin's job a lot easier.