I have just downloaded ninja 1.13.0 and tried it on Ubuntu 22.04 LTS ARM and got the following:

$ ninja --version
ninja: /lib/aarch64-linux-gnu/libc.so.6: version `GLIBC_2.38' not found (required by ninja)
ninja: /lib/aarch64-linux-gnu/libstdc++.so.6: version `GLIBCXX_3.4.32' not found (required by ninja)

Was dropping support for GLIBC_2.35 in ninja planned on ARM? Ubuntu 22.04 LTS is officially supported until April 2027, so I am surprised that support for it was dropped just like this. (To drop Ubuntu 20.04 LTS is fine since official support for it ended in May 2025.)

I explicitly mentioned Ubuntu 22.04 LTS ARM because everything is indeed fine with Ubuntu 22.04 LTS Intel.