But I regularly have to take calls with people from other companies, and one in particular comes to mind where some dude never ever wears a proper headset, or doesn't know how to configure it or something [0]. We can always hear the people around him going about their business.
Then there's also the fact that people insist on using bluetooth headsets and wifi, so the audio goes in and out when it doesn't sound like a robot.
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[0] I've complained once to somebody about being unable to hear them. They said they were wearing a headset, but, as it turned out, Teams was using the laptop's integrated mic instead.
I use a Sennheiser/EPOS DECT headset. I'd only recommend the Sennheiser ones for DECT because they have an ultra-wideband mode that actually sounds pretty good. Otherwise you're going to sound like a cordless phone.
This was driving me crazy when I was looking for one a few months ago. Ended going with a wired Poly (the DECT models were absurdly expensive for my needs).
I do have a DECT Jabra model (with a huge base) which is nice enough for conference calls, and the mic doesn't sound noticeably worse than the newer, wired model we have at work. The headphones do have a somewhat tinnier sound, bur for conferencing they're very good as long as nobody with a deep voice breaks out some Shure mic.
The killer feature for me is the very, very low latency. I'm a non-competitive non-hardcore gamer, but I'm happy to use it in FPS games.
It also wipes the floor with bluetooth range-wise. During covid I had it at my parents' thick-walled house and it allowed me to walk around the garden during calls with no interruptions. BT can't handle me going in the next room in my small apartment.
And yea DECT is pretty nice. I also use it for gaming occasionally.
Then they wonder why everyone hates meetings.
But I also own IEMs that I use if I'm giving a presentation, so I can get the necessary direct monitoring to ensure I'm on-point with my audio.