Would it be a good idea to use x448 only for maximum security?

[Nurmagoz]

Nginx configuration: ssl_ecdh_curve X448;

As per SSL Labs Key exchange table they only consider 4096 bits (Equivalent RSA/DH Key Size) and above to be secure (100% score reading) which mean only secp384r1 and secp521r1 must be used.

What's your insights about this subject?

ThX!