Bluetooth 5.0 and aptxLL

With one of my metal detectors I use a Trond 4.0 transmitter with aptx LL. I pair it with a Trond 4.0 receiver with aptx LL, along with a wired earpiece. Together they work great. However, I want to upgrade to wireless earbuds and eliminate the receiver and wired earpiece.
I also have a detector with onboard Bluetooth 4.1 with aptx LL. I pair it also with a Trond 4.0 receiver and a wired earpiece. Once again I would like to use wireless earbuds and eliminate the receiver and wired earpiece.
I cannot find a pair of wireless earbuds with aptx LL. Basically, all there is out there is the new 5.0 wireless earbuds. None of which seem to have the aptx LL support listed in their specs. I am considering getting a 5.0 transmitter and a set of 5.0 wireless earbuds. As I understand it, 5.0 is considerably faster than previous Bluetooth.
So….my questions are:
1.Is 5.0, in terms of latency, so fast that aptx LL is no longer needed?
2.What is the lag, in milliseconds, of 5.0 wireless technology?
3.What should I watch for when purchasing 5.0 technology to ensure low
latency?
4.Does anyone know of a set of wireless earbuds that support aptx LL?
THANKS EVERYONE