Isn't that obvious, or is there some aspect to this I'm not aware of (I care about sound quality, so I don't use AirPods)?
It's a very annoying problem because the Airpods actually sound fantastic, but as soon as the mic kicks in, it sounds like crap. Same thing happens with my Sony XM3s or any other Bluetooth headset. The protocol drops to a shitty bitrate to support full duplex.
I do that for all my calls and games already, but I just have to manually set it in the OS (and sometimes on a per-app basis). It only takes a second and usually remembers.
If the app were a one-time purchase I'd probably buy it just to avoid the hassle, but definitely not paying a subscription for something that's so easy to do on my own. As a compromise, I'd also be OK with a OS-version tied upgrade pricing, like you pay $x for the macOS 15 version, but when the next breaking OS update comes that requires an update, you can pay $y after the upgrade discount to get the newest version that works with the new OS.