wemay
Site Donor 2023
...and Liqui Moly Top Tec 6200:
products.liqui-moly.com
So no, PAO is not necessary to meet VW508 approval.

Top Tec 6200 0W-20
High-tech low-friction motor oil based on synthetic technology. Developed for the high requirements of Audi, Porsche, Seat, Škoda and VW. The lower viscosity ensures excellent cold-start behavior, improves engine efficiency and reduces consumption. Innovative additive technology ensures...
So no, PAO is not necessary to meet VW508 approval.