Back to some basics here. It’s too easy these days to get bogged down in the sheer number of tools available to you in the
Category: OneDrive

Sharing links that block downloads for Office files
The ability to specify a sharing link that prohibits the recipient downloading the file has started to roll out and has appeared in my tenant.

Choose your Office 365 tenant name wisely !
That initial tenant domain name choice is crucial – you cannot change it later.