cpulimit: detect failure / exit status in Linux

I'm using cpulimit in a Bash script to run a certain command (ffmpeg) with a limited CPU usage, but I want to know if the command fails. But when the command(ffmpeg) fails with any error, cpulimit still exists with exit status 0. What should I do? My cpulimit command: cpulimit -l 300 -f -- ffmpeg ... CPUlimit version 3.0 OS: Ubuntu with Linux 6.8.0 Note: cpulimit does not work on forks of the given command, unless I pass --monitor-forks flag, which the manual says is a bad idea specially in scripts: > -m, --monitor-forks watch and throttle child processes of the target process Warning: It is usually a bad idea to use this flag, > espe‐ cially on a shell script. The commands in the script will each > spawn a process which will, in turn, spawn more copies of this program > to throttle them, bogging down the system. Also, it is possible for a > child process to die and for its PID to be assigned to another > program. When this happens quickly it can cause cpulimit to target the > new, unin‐ tended process before the old information has had a chance > to be flushed out. Only use the monitor-forks option in specific > cases, ideally on machines without a lot of new processes being > spawned.