How can I make the LEFT and RIGHT functions in SQL sargable?

My T-SQL Lint (v1.15.3.0) yields an error on the following code:

SELECT DISTINCT B.BookID
FROM #Books B
WHERE RIGHT(B.[Name], 10) = '-mypostfix';

error non-sargable : Performing functions on filter clauses 
or join predicates can cause performance problems.

I used a RIGHT function to avoid a wildcard at the beginning of my string (e.g. LIKE %-mypostfix), which seems like it would be less performant. However, after some research, I found that SQL can leverage its search index when using a wildcard. LEFT and RIGHT force the database to look through every row. Nonetheless, I am convinced that RIGHT ought to be faster, especially for somewhat long strings.

Would I really need to use the wildcard strategy to avoid this linter error?