You cant twll if some sites need it, unless you try it. I jave never needed a chrome user agent. Only time I needed to change user agent is a fkng website that only let me in if I was on windows. It fidnt care about the browser user agente. It cared for the os user agent.
I had rhe idea fedora atomic was so reliable, ,but I just updated a system and it broke… Reminded me of my manjaro times😑