France is in good shape because there are a lot of great players gathered there. and also have a chance to be a winner. but there is always a surprise waiting for every World Cup held.
but if you look at Brazil in the qualifying round for the 2022 world cup. they performed very impressively. so it's no wonder many say that Brazil also has a great opportunity.
no, france is not in great shape, their form has been very problematic in the last few matches, even croatia beat france in the UEFA Nations League match.
their statistics are not in their best form after winning the 2018 world cup. however, the line-up of the french players has not undergone many significant changes, they are filled with many star players, it's just that it's possible that paul pogba will not be able to strengthen his squad in the tournament later due to injury.
However, the French squad still has many replacement options. I agree France is still a very favorite squad in this world cup.
It seems to me that France has a lot more problems with the relationships between individual players in the team than with the form of the players.
The Nations League isn't a serious competition anyway and is mainly serves coaches to prepare players for the next big competition and try out new players, so I wouldn't look too closely at France's results in that competition.
The World Cup is the most important competition for all national teams and everyone will come fully prepared to make the best possible result.
Considering the individual quality of the players, France and Brazil are the main favorites of this competition, but they will have to be fully prepared and focused on the competition, without problems between players in the team or between players and coaches.