Yup … I would suppose given your previous posts that you are aiming to have 5.10 and 5.15 ?
- view current running kernel
uname -r - check mhwd installed kernels
mhwd-kernel -li - install desired kernel
sudo mhwd-kernel -i linux510 - remove unwanted kernel
sudo mhwd-kernel -r linux513
As with most things you can also check the help flag:
mhwd-kernel --help -or- mhwd-kernel -h