Hi
When using two or more devices
If both of them make a change to one note
if you sync the vault with Drivesync and …
Conflicts appear
becuse both files are synced and the Sync-Tool cannot Mearge the text of the two files based on the time in which the note-lines added , so as the result It will make two files which is not synced very well
The Main Thing that you should consider when syncing is
the real-time-that-actions-happen
The main axis of the universe is time.
it moves and no one except god can stop it , and everything is ordered by time
If you can find a way , so that you can recognize the real-time of the changes of each-line-of-text in .md files and merging them together with the order based on the real-time
and kinda implement it in a way so it can be used with free cloud services ( google drive & …)
You will make a high-end syncing tool (plugin)
and you will make us servive
It is very to similar to a telegram-group-chatting that every thing comes by order of time even with 1000 members .
Although I know this plugin can have Conflict-of-Interest with Paid-Obsidian-sync
Also For fixing conflicts of files when syncing, I do create “only one sentence , one .md file” so files do not conflict
and
1 - my syncing tool (drivesync) syncs without conflicts
2 - and Also in graph-view every thing is clear for understanding.
And maybe I’m wrong and somthing similar exist out there
So if it has been built befor (free or cheap) let me know 
I personally don’t have the ability to do it , if any one can ; please do it and let us know you are working on it .
Also If I get good impressions maybe I personally start doing it my self (it can be possible)