First of all, the CI/DL codeshare does not, at the moment, offer any connecting service through TPE. Second of all, Delta Non-Revenue flying is not yet permitted on this route.
As for the AF flight, I do not think that Delta has the rights to sell tickets to or from Bangkok, which means we cannot non-rev to Bangkok, only on to Vietnam. It is similar to the old Delta codeshare to Abu Dhabi, UAE, which stopped in Riyadh in one direction. Riyadh showed up on the map, but it was not possible to get off the plane there, even iff you had a KSA visa.