Ok I may be an idiot, but I just have a permanently attached external disk that does Time Machine, what am I missing out on? Why network location? Or are you backing up massive amounts of data? (for me it’s just 2TB)
It seems most of the problems with Time Machine happen when you try and run it over SMB. It's not that surprising when you realise what it is doing under that scenario. It creates a virtual disk on the remote and then formats it with APFS. You don't need much to go wrong to corrupt the backup in this scenario.