Feature Request: Mounting Onedrive/Sharepoint as a network drive

This is not the right place to ask for product features (no one relevant at Microsoft reads posts on this community site), however you're a talking about an existing feature that is rightfully being deprecated.

I have been in organisations that have mounted SharePoint drives as network connections. Marrying two very different file storages like this causes incredible problems, including
1. Loss or corruption of data due to network file paths (which may be as long as 32K characters) being truncated to those of cloud storage ( practically less than 300 characters ). This alone should give pause to attempting this. Cloud storage sync needs to work as a lowest common denominator with all supported client platforms Windows, iOS, Linux, Android etc (true also for Dropbox, Google Drive etc..). 
2. Timing out requiring constant refresh of connections.
3. Cloud-based features dependent on synchronisation with cloud do not work for individual users. Some of these are security features and protections against ransomeware etc.

Some of the issues you highlight appear to be connected with improper use of SharePoint, such as storing common files in OneDrive rather than SharePoint.