Bayern Munich won at the Celtic, but this was also hard fought win for them because Celtic done good resistance and in last few minutes things were completely looking for having draw, but Bayern Munich is surely big club with enough quality and sources which give them good success and advantage in this game.

This was Celtic's home match. Naturally Celtic played well. Every team that qualified for the play-offs is strong enough. So now every match will be very competitive. I have seen the highlights of every match yesterday. Every team played well enough. Although we consider Atalanta and Milan as favorites, these two teams lost.
We expected to see an attacking gameplay from Munich. But Bayern Munich could not play a completely attacking strategy. Bayern Munich players managed to take a total of 10 shots. Munich's attack was strong, so they were able to score two goals.
Bayern Munich's performance needs to improve further if they want to qualify for the champions League final. If they perform like this, they will not be able to win against Liverpool, Barcelona or Madrid.
Bayern Munich's victory at Celtic's headquarters was indeed a good and extraordinary thing for Bayern Munich. Of course, it was true that it was not easy for Bayern Munich to win that match because Celtic still put up a good fight and of course Celtic also didn't want to disappoint their fans. Of course, in this match Hary Kane and Olise were the goal scorers for Bayern Munich and of course he was very instrumental for Bayern Munich and what is certain is that Bayern Munich now has a lot of capital to continue the match at its own headquarters and this will definitely make Bayern have to be alert too even though Bayern Munich will be the host in the second leg.
I agree with you that Bayern Munich's strength really needs to be improved if they want to qualify for the final because surely in the last 16 the teams that Bayern Munich will face will be strong and it will definitely not be easy for Bayern to beat them. Of course, Vincent Kompany's role will be relied on here, of course we'll see what happens next. and of course in the second leg, Celtic will definitely use all their strength and what is certain is that Vincent needs to be alert even though Bayern will have the potential to win in the second leg.