BT latency is annoying enough when listening to media. I'm used to pressing the pause button and having the audio stop promptly, with no perceptible delay. The video desync (if applicable) can also be very annoying.

That's odd, I have literally never experienced that before. What kind of setup are you using? I just tried it now, thinking maybe I just never really paid attention to any play/pause delay when listening to music or watching videos. Nope, it's pretty much instant as far as I can tell. I'm using the AirPods Pro and had Gen 1 AirPods before that -- can't recall ever having that problem in the past 3 years.

Not GP. It really depends on the device in my experience. My Denon system has seconds of lag over Bluetooth, enough to even make the volume slider on the phone annoying to use. On the other hand, my wireless headphones from Sony have as far as I can tell zero discernable lag. Both used from the same Android phone.

Could be the codec they are using. AptX LL is the best for latency as far as I know, but not all headphones support it, and you have to go into developer options to change it.

The Denon system might be using LDAC which is higher quality, but sacrificing latency.

Latency is why I'll never "upgrade." I have a pair of Bluetooth earbuds in my gym bag but my backpack has wired earbuds because sometimes I produce music on my laptop. Doing so with Bluetooth latency might not be impossible but it'll be the closest thing to it.

And since I don't wanna carry two pairs of headphones around my phone needs to have a headphone jack.

I do play (fast) games and don't perceive any latency. However, the number of devices I can connect to my dongle is two; when I add a third, the audio starts to crack.

Serious question: do people play mobile games where a slight latency would matter at all? Or are you talking about the overall immersion that goes missing?

Oh, just immersion. Thing on screen blows up, half a second later you hear it blow up is really offputting.

I think it depends on what games are your playing. For rhythm games, headphone jack is a must.