Vault sharing and co-creation

Things I have tried

What I’m trying to do

I want to share a vault between members of a research team (3 of us) so that everyone can both read and write to the vault.

Is there any reason why I cannot simply give all three of us access to the same directory where the vault is stored on OneDrive. I realise that we can’t edit at once without creating syncronization issues, but are there any other reasons not to do this?

The only other solution apparently is to take out an Obsidian Sync subscription, and i understand that everyone who shares the vault needs to have Sync subscriiption - which we cannot afford.

You can try one drive. See if it works for your needs.

Also, read this https://help.obsidian.md/Licenses+%26+Payment/Commercial+license