That’s the file you need, just uncompress it and do the usual (source the thisroot.sh file…). Did you try it and had any problems? Also install the dependencies before using ROOT.
parallels:~$ file root/bin/root
root/bin/root: ELF 64-bit LSB pie executable, x86-64, version 1 (SYSV), dynamically linked, interpreter /lib64/ld-linux-x86-64.so.2, BuildID[sha1]=67697b58700b5a65dd9692c19a21c5bcb3faee0d, for GNU/Linux 3.2.0, not stripped
parallels:~$ uname -a
Linux ubuntu-linux-2404 6.8.0-58-generic #60-Ubuntu SMP PREEMPT_DYNAMIC Fri Mar 14 18:09:50 UTC 2025 aarch64 aarch64 aarch64 GNU/Linux
i.e. trying to run a x86 binary on a aarch64 architecture. Hence my question if there is a binary version for this architecture - or did I misinterpret this?