How can I stop interruptions on Logitech G PRO X 2 LIGHTSPEED?

As stated in the title, my issue is with a wireless headset that has a LIGHTSPEED adapter. It's considered a 'premium' model as claimed by Amazon where I bought them (from the official Logitech store) but I don't think it matters. Almost everything works great in the headset - except for the fact it keeps randomly disconnecting and connecting again in the next moment for no reason I could identify. It happens on average between 6-10 minutes of use, but sometimes it works for a longer time without interruptions when it happens. Logitech support for now is ghosting me.
Things I tried:
- removing device completely from the Windows device list
- uninstalling and installing again Logitech software
- checking for Windows updates
- uninstalling and installing again USB and sound drivers
- rolling back hardware update and installing it again
- tried all the USB ports I have - both in the front and back of the PC and in the keyboard port I happen to have
- turning off entire wi-fi, only 2.4 GHz, changing wifi channels

Bluetooth connection with my phone (I don't have one in my PC and it doesn't support software which would be too big of a loss) works without issues.