This allows me to quickly reinstall a distro or install a different one. However, I use GParted to set up the partitions rather than ‘fdisk‘ or other error-prone CLI methods.

GParted allows me to see what is happening with my disk(s) in real-time and avoids using esoteric, non-intuitive commands. It also helps prevent any potentially fatal ‘finger checks’.

I have tried this many times in the past but it never worked so thanks very much for the guide here.

Thank you very much. I am very happy

How do you shrink the existing / partition?

To shrink the existing "/" partition, utilize the “Resize/Move” option in GParted. This process may take some time, depending on the size of your "/" partition.

Remember to backup or copy your disk before making changes to "/" to safeguard against any potential issues.

Personally, I prefer using a separate HDD exclusively for "/home".

Having a separate "/home" offers advantages such as the ability to reinstall a distribution or install a different one without impacting your '/home'.