Linux

Hello everyone, my company (our department is of around 150+ developers/machine learning people/researchers) is currently considering switching from Windows to Gnu+Linux for company devices (as in the machines we use in our daily work) and we are currently in the phase of collecting requirements. I'm not in charge of the process or involved in the decision phase, but as an enthusiast I'm curious about it. We handle data and other sensitive resources, so the environment should remain managed by the IT department (what's possible to install, VPNs, firewalls, updates and similar). What do companies generally use in this kind of scenario? I'm assuming they generally do some stuff with either Canonical or Red Hat, but are there alternatives? Are there ways to do something that works across distributions by using flatpak or the nix package manager? What are your experiences?