When I get a call at home while already wearing my wired headset I like to just plug it into the phone.
Since my current phone was bought used I had to compromise on some things, so I don’t have a headphone jack anymore. I use a USB-C Adapter now. I use it for most phone calls, especially the longer ones with family. So probably for a few hours per month.
For quite a long time, until about 2021, I was still using wired headphones when on the go, but nowadays I’m addicted to noise cancelling, so that use case has moved to Bluetooth now. My protective headsets from work (both the over-ear and the in-ear set) also use Bluetooth.