C23 thoughts and opinions

In an attempt to bring some topicality to the group, has anyone started using, or considering, C23 ?  There's quite a lot of change in it, especially compared to the minor changes in C17.
<https://open-std.org/JTC1/SC22/WG14/www/docs/n3220.pdf>
<https://en.wikipedia.org/wiki/C23_(C_standard_revision)>
<https://en.cppreference.com/w/c/23>
I like that it tidies up a lot of old stuff - it is neater to have things like "bool", "static_assert", etc., as part of the language rather than needing a half-dozen includes for such basic stuff.
I like that it standardises a several useful extensions that have been in gcc and clang (and possibly other compilers) for many years.
I'm not sure it will make a big difference to my own programming - when I want "typeof" or "chk_add()", I already use them in gcc.  But for people restricted to standard C, there's more new to enjoy.  And I prefer to use standard syntax when possible.
"constexpr" is something I think I will find helpful, in at least some circumstances.