UPDATE: This issue was still present and reproducible, even after the releases of the 25-OCT-2022, 17-NOV-2022, 06-DEC-2022, 15-DEC-2022, 05-JAN-2023, 24-JAN-2023, 07-FEB-2023, 21-FEB-2023, 07-MAR-2023, 25-APR-2023, 09-MAY-2023, 17-MAY-2023, 13-JUN-2023, 28-JUN-2023, 11-JUL-2023, 10-AUG-2023, 24-AUG-2023, 07-SEP-2023, 19-SEP-2023 and 21-SEP-2023 patches…
However, the release of the 10-OCT-2023 patch included a “hero rework” of Sombra. And, with it, Sombra’s OPPORTUNIST passive was entirely removed.
So, while this issue was never directly “resolved”, it no longer appears to be relevant (assuming the removal of Sombra’s OPPORTUNIST passive is not later reverted).