I would like to know what results the French team should achieve so that you consider this a good achievement. Win several World Cups and European Championships in a row? This is, to put it mildly, a rare event (to win the Euro and the World in a row) and does not at all indicate the weakness of the team. In addition, there is no limit to perfection and you can say about any team that they could perform better. For example, there are also questions for the Golden Generation of Spain 
France still missing to be the winner in UEFA Euro after longer time on 2022 and the best edition on Euro 2016 after lead to final stage before beating by Portugal. But France have good achievement in FIFA World Cup after last two edition success lead to final stage and last edition failed after losing from Argentina.I have bigger percentage with France get good achievement in Euro 2024 Germany because left one years and team dominance by young players make them easy than other national teams have build it with senior player.