Stuck at welcome to grub

I have timeshift and autosnap installed but dont know how to recover from snapshot when running live environment iso. there is no timeshift pre-installed in iso file. I tried arch chroot but can’t mount any volm. what to do pls help.

You can use yay on the live ISO to install timeshift.

yay -Sy timeshift-bin

timeshift didn’t install.
/usr/lib/libc.so.6: version ‘GLIBC_2.34’ not found

Are you using the latest ISO?

no

You probably can’t use an old ISO for timeshift recovery.

ok I will try with latest iso