IPv4 continues to be available to entities that have a need that fits a particular policy shape, just most people don't. Specifically, you can get IPv4 /24s for IPv6 transition purposes. This includes anycast DNS, MX, etc for legacy clients on other networks, v4-side of CGNAT, etc.

E.g. I was able to get a /24 in the ARIN region in 2021 and could justify 2 more for a _logical_ network topology similar to what NK presents to the world.

APNIC similarly has a pool available for IPv4 allocations: https://www.apnic.net/manage-ip/ipv4-exhaustion/#the-situati...