I use it a few times a month. I’ve got fantastic Bluetooth earbuds, but occasionally in zoom calls I’ll switch from my PC to my phone on the fly, and the wired PC headset comes with me since it’s got a nice microphone and noise cancelling. I can’t imagine trying to switch quickly like this with Bluetooth!
I also tend to use wired headphones when commuting in busy areas (city train stations etc.) as Bluetooth falls apart in these conditions… dropouts piss me off. I listen to offline MP3s for the same reason.
I’ve gone without before - my last phone didn’t have a headphone jack and I never bothered with the USBC dongle because it was a pain - but having the flexibility is more convenient.
I only upgrade every 4-5 years, so it makes it easier to find a newish phone that has a headphone jack. It frustrates me that new laptops still include headphone jacks, but most new phones don’t. It’s a stupid inconsistency.