lionel messi has realized this this season when a lot of scorn came to him which made him feel uncomfortable again in paris. In team depth as you said they don't really focus on supporting lionel messi to finish in every attack they do even mbappe being the main one in this category.
So many problems happened with him after world cup. It started by PSG was insulting him to not celebrate his win in paris. Mbappe is not performing so good again. He has always been missing so many opportunities in any match. Mbappe and messi are not suitable anymore to be called as a team.
Messi has different perspective regarding it. I meant messi intents moving to go back to the its old club again. PSG is having so many problem that has not yet been solved. This will prevent PSG to take the french league title for this season.
Lionel messi has so far scored 14 goals and recorded 14 assists so far, even this season can be said to be a more perfect season for him compared to his first time at psg. However, many fans do not pay respect to him even though he is a football legend who is able to anesthetize us from his skill with the ball on the field.
Many fans were always just insulting him and it doesn't matter how big the contribution that already made by messi and haters will always hate him. Messi needs to move to the healthy environtment for him and that must be barcelona as his golden old club.
i see no other club that will able to provide friendly environtment for him other than barcelona.