What does backed off status mean in Edge sync?

[HotCakeX]

I see this after importing bookmarks from Firefox to Edge canary 

Version 82.0.451.0 (Official build) canary (64-bit)

edge://sync-internals/

I think Microsoft needs to add explanation about it somewhere, like in Microsoft docs, so we can troubleshoot sync issues.

it's not just "backed off", there are other phrases used that sometimes appear in the "message" column and I don't know what they mean.

also what is the "Group Type" ?

[#2]

@HotCakeXSame trouble. Is "Backed off" state self-recoverable or do I need to remove and to add profile? Sync is not still reliable :-(. Recently I wrote some feedbacks.

[#3]

Hi,
I remember I had to wait a day or two until it came back online..