Like I said, it is a matter of point of view, and yes such is the karma of ISO driven languages with multiple implementations, when one cares about cross platform code.
There are many folks that don't care though, for them it is "one platform, one compiler, language standard is whatever my compiler allows me to do, including extensions".
I am also quite bullish on the opinion that eventually, C++26 might be the last standard, not that WG21 will stop working on new ones, rather that is what many will care about when using C++ in a polyglot environment, as it is already the case in mobile OS platforms, the two major desktop platforms and distributed computing (CNCF project landscape).
There are many folks that don't care though, for them it is "one platform, one compiler, language standard is whatever my compiler allows me to do, including extensions".
I am also quite bullish on the opinion that eventually, C++26 might be the last standard, not that WG21 will stop working on new ones, rather that is what many will care about when using C++ in a polyglot environment, as it is already the case in mobile OS platforms, the two major desktop platforms and distributed computing (CNCF project landscape).
Why C++26 and not earlier? Reflection.