They did, but there's a massive difference between their form at that time, and now, and how effective they are going forward. PSG played with a false nine in that match, Dembele wasn't involved [and he wasnt in the form he is now], neither was Ruiz in midfield, and of course they didn't have Kvaratshkelia. PSG didnt play bad by any means, but they were ineffective in the final third, they dominated the game they had about 65 percent of possession at the Emirates.
There's no Havertz for Arsenal this time around.