Access to Personal SharePoint site from Teams Web Client (via Office 365 waffle)
While accessing SharePoint Online via Office 365 waffle from Teams Web client, it redirects to root SharePoint site (Company SharePoint site) instead of user’s (personal) SharePoint site. That's very odd behaviour and not consistent with other Office 365 apps.
Teams web client must be consistent with all other apps, where accessing SharePoint (via Office 365 waffle) must redirect user to their (personal) SharePoint site.
The current mapping of SharePoint URL on Teams web client is more painful, when you don't use root SharePoint site (Company SharePoint site) and also have removed user's access to root SharePoint site. In this it shows Access Denied to users while accessing SharePoint service via Teams Web client (Office 365 waffle).
I would suggest, too, that the root portal site (https://tenantname.sharepoint.com) is becoming obsolete with the advent of Hub sites. So...why would TEAMS open the site by default. Is there a use for it that I'm not seeing, going forward?