Bluetooth problems on 2018 Macbook Pro 15"

Hello, I've purchased my MacBook Pro in August and ever since I've been having these issues.

I have a speaker and my Logitech MX Master 2S mouse connected to it and at least a few times a day they both just disconnect.

Other than that, The sound from the speaker cuts out many times and I have a mechanical keyboard by Drevo, called Calibur that can't hold a connection for more than a minute.

I've tried to reset the bluetooh module, remove all devices and factory reset all connected Apple devices.

I've also formatted the whole Macbook.

Nothing seems to have fixed the issue.

Any help would be greatly appreciated!