It depends upon the setting and what you want. Showing up to a McDonalds shift in a suite and tie trying to get the CEO job. Not so much.
Showing up to your first office job and meeting with your bosses in a nice polo or button down shirt and slacks looking professional, yes. It signals you are eager and want to succeed. Which will go a long way.
Of course you still have to put the work in. But your boss will be more likely to give you more training/work/promotions if they know you want to learn and work over someone who doesn’t give a shit.
I’ve only owned windows machines… well since my first DOS machine in the 90s. I made the switch to Mac after hearing about the embedded Ads in 11.
I’m sure there are many more going to Linux.