More Aircraft carriers , a couple of more SSNs, maybe a couple of more FREMMs , sounds very good. But everything costs money. Even maintaining enough crew, enough support infrastructure to fully utilise even 2-3 less ships.
Germany has a 6 Type 212s with just ~60 men. Obviously having 10 Type 212 sounds good against Russian resurgence. But a more practical and efficient solution will be to reduce the fleet to 4 submarines, or atleast cancel all planned orders for more and invest in more crews. That way they will actually be able to have more hours on station working.
Even for France we have seen tremendous cuts in FREMM program, 50% cut in Horizon class destroyer program. Operating the naval vessels to its full capabilities is itself very costly.
I would rather have France invest in a single AC , or still better. If it was UK, I would have suggested to co-own 2 America Class LHDs with USN. But France has more independent outlook.