Yes, you need IPv6

Stop turning it off holy shit it's 2022 and we exhausted all the IPv4 /8 addresses a decade ago.

BUt IPv4 is fine

No, it really isn't.

We used up the last free /8 block in IPv4 in 2011. If you're expecting someone to find some magical solution to the IPv4 address exhaustion problem, then you should know, we ran out of time over a decade ago.

There are fundamental, entirely unsolvable issues with IPv4 that IPv6 just lacks. Just add support for it already.