Hi @SLSYDGRAM,
I am replying to this to give it a bump and for some conversation.
My institution does not use Microsoft SharePoint and we do not have Microsoft (in any capacity) integrated with Canvas. Maybe other institutions have used Microsoft SharePoint with Canvas but I feel it is probably more likely that others have integrated Microsoft 365 (OneDrive) or Microsoft Teams because (whether in business or education) they are Microsoft's more popular product offerings.
If you go to https://learn.microsoft.com/en-us/microsoft-365/lti/?view=o365-worldwide, you will see on the left-side a section of guides dedicated to "Canvas integrations" and SharePoint is not listed (yes, I understand that "365" is different but it is a website/webpage dedicated to Microsoft's LTI offerings; I even learned about something new called Microsoft Reflect). I also briefly browsed through https://learn.microsoft.com using different keywords and there does not seem to be much of anything related to SharePoint and Canvas (most of which seemed to be for "canvas" in a different context and not the LMS) and LTIs.
I did do a Google Search for "microsoft sharepoint canvas lms lti" (not in quotes) and the first result (even in a different web browser, without any previous browsing data and without being signed into Google, something I regularly do so that search results are less likely to be skewed) and the first result was the link provided above.
I do not have much more to say besides that but maybe others in the Community will.
-Doug