What's the correct channel for reporting bugs with the MSOLEDBSQL driver? This SQL Server feedback item has been open since Sep 2018 but I'm not sure whether it's got back to the team responsible for that driver.
https://feedback.azure.com/forums/908035-sql-server/suggestions/35400568-msoledbsql
This issue affects SQL Server linked servers that use this driver - simple SELECTs from a remote table/view using such a linked server fail with "Microsoft Distributed Transaction Coordinator (MS DTC) has stopped this transaction." unless you first begin an explicit distributed transaction. The issue doesn't seem to affect INSERTs/UPDATEs/DELETEs to a remote table or EXECing a remote proc strangely, which work fine without the explicit distributed transaction. The issue is not present in linked servers that use the older SQLNCLI11 or SQLOLEDB drivers. Repro'ed with versions 18.2.1 and 18.2.2 of MSOLEDBSQL.