I use the G50 as well. Before I’ve had the G90.Both are great units.
Just be aware of the fact that the 2.4GHz band is getting fuller and fuller.
As far as I know there are no 2.4GHz IEM systems.
The G50 and G90 both use the same transmitter which radio can operate in two different modes. In mode one it is probably the most powerful 2.4GHz system on the market. It completely kills WiFi (everything on 2.4G) within its range. I have never to date experienced any dropouts with my G90, but other people in the neighbourhood may not be as happy about it That said,I will probably choose a unit that operate outside the WiFi-ranges for my next wireless to avoid the clashes with WiFi. With everything going wireless I suspect we will soon see multi-channel bi-directional UHF-systems that combine instrument transmitter and IEM receiver in a single body-pack. Maybe even add in a 3rd connection for a wearable microphone.