I also read that Messi would also become an ambassador for the City Football Group which mean the deal will push through sooner or later.
if it's true that Man City are planning to implement a "Messi tax", the tax problem must be very mind-consuming for him all this time.
then, one of his biggest consideration to leave Barcelona is because of this tax
UPDATE:
Guardiola has been spotted in barcelona.
source: https://www.thesun.co.uk/sport/football/12531146/messi-transfer-guardiola-pictured-barcelona-city-quarantine/
With the appearance of Guardiola at Barcelona to me it is increasingly clear that Messi will move to Manchester City in the near future.
Regarding Messi's tax problem, Manchester City will definitely be resolved if it is true that Messi moves to Manchester City. We'll just
wait for a few days there will definitely be official news regarding this matter.