Solving intra parallel query deadlocks
First off, intra-query parallelism deadlocks are always a SQL Server bug.  There's not much you can do to fix them, other than updating SQL Server, opening a support case, suppressing parallelism (eg adding a MAXDOP 1 hint), or trying to get a query that uses a simpler plan.
In this case in EF, if you can, set UseDatabaseNullSemantics to true.  Otherwise the EF query translator generates TSQL queries that emulate the C# null comparison semantics.  That will clean up the NULL handling in the query.
Other than that, this query appears to be a view, joined with another table, and then a paging query on top of that.  So possibly can be simplified if you can figure out what the intent is.