Pennsylvania already certified its vote for president. This order impacts down ballot races that have not yet been certified.
https://www.forbes.com/sites/alisondurkee/2020/11/25/pennsylvania-court-temporarily-blocks-state-from-certifying-votes-in-response-to-gop-challenge/?sh=2d47cf1f5907
Pretty sure if the Pennsylvania constitution disallows mail in balloting, it’s going to affect the current election for President too.