Not only now the PSG be favorite to win Ligue 1 even before the league starts, they have become a strong candidate to become champions this season, so I think there is nothing surprising about their current statistics including consecutive wins at the start of the season, PSG has a squad that is very capable and they are still better than the current rival teams, the quality of the squad and also the financial differences have been a strength for PSG to be able their to easily win Ligue 1, but unfortunately the greatness that PSG have in Ligue 1 is not comparable to their performance and mentality in the Champions League which very bad so far, to be honest if we talk about Ligue 1 of course we can't deny that they are the strongest candidate to be champhionsip, while other teams are currently only competing for a place in the UCL, but for this season Champions League, I personally don't expect much from PSG.
PSG are looking much stronger and ambitious this season, better than they were in the last campaign. I also have a strong feeling that they will emerge as Ligue 1 champions at the end of the season, that is if nothing goes wrong along the way.
It wouldn’t be a shocker to see PSG win the league considering the current quality of the players they have and their history of winning the domestic leagu. PSG do not inspire the same level of confidence in me as regards to their performance in the Champions league. They do not seem to do very when competing against the best teams from other top European leagues. Like you, I would not put my money on PAG in the UCL.