IPv6 got some real traction in the last decade. From around 10% adoption up to 50%. It's not dead, like many are claiming. It works fine, just keep implementing it.
> From around 10% adoption up to 50%.
Google sees 70-80% from some countries:
* https://www.google.com/intl/en/ipv6/statistics.html#tab=per-...
And Windows 11 now supports CLAT.
But it's not really useful until it has critical mass at say 80 or 90%.
I keep IPv4 off on a media computer all the time out of curiosity. IPv6-only is still unusable because only about 5% to 10% of top sites that I find during a Google Search work. It's almost guaranteed that a website will not load on all the top results.
So even if it's true 50% of clients support IPv6, only about 5% to 10% of website hosts do.
Sure a person can do a dual-stack setup or do some IPv4-IPv6 translation, but seriously IPv6-only should be plug-and-play by now.