In the early days of W10 I had an ongoing problem with the system updating. When it did so I lost my printer which was an old Canon and Canon had refused to update the drivers. I tried to stop auto updates but failed until I talked to Windows tec help and he told me to set the W10 system as if I was using dial up. It doent stop you using the normal high speed internet when you tell the machine to do so but it does stop the data heavy auto processes built into W10.

Might be worth trying as a way of contiolling the cloud link. certainly my W10 PC doesnt upload to the MS cloud and I have done nothing else to stop it doing so.

As for Edge, just load up Firefox and make it default.