After all, even if for example Bayern Munich does not have Kane too, that Bayern Munich will still be the team projected to win if the opponent is only Galatasaray. So yes, moreover in this season Bayern Munich has Kane and also, Kane managed to make a good contribution to Bayern Munich and although Kane is still relatively new to playing at Bayern Munich but Kane still managed to play well. So yes, there is no good reason for Bayern Munich not to beat Galatasaray, because the victory on paper for Bayern Munich will certainly be the real final result.
There isn't much to compare between these two teams. Bayern Munich will always be favourites to win, not because of their name, but because of their style of play and long-standing domination in the Champions League competition. Galatasaray may be good and doing very well in both their domestic league and the Champions League, but they have no chance against Bayern Munich no matter what even if Bayern Munich is in poor form and performing ineffectively. Bayern has already won the group stage, and we should be thinking about who they will face in the qualification round.
Football games are not decided with our opinions we're only meant to say our own opinions on how the game would be. Domination in the Champions League doesn't mean that dominant club can't be beaten. Real Madrid last season lost to a random side last two seasons during the group stage but they fought hard ensuring the qualifications for the round of sixteen.
Four more games until the group stages gets to full conclusion. Two more meetings with Galatasaray, one with Copenhagen and lastly Manchester United. Too much expectations leads to heartbreaks. Why not enjoy these game gradually? Enjoy the process, don't rush it.