And, in turn, you appear to be oblivious to the point - the release cadence of this best-case scenario still means like a decade between updates to the project.
C++26 was released 4months ago; pointless to update it until compilers and deps are updated. So, best case is maybe you'll have complete bug-tested support in the supported compilers in 2030.
If we're looking at 2035-ish for the next release, we're still only looking at 2040 before you update.
You still have to take into account that updating might not even be necessary. It's not like C++ < C++26 suddenly doesn't work.