--- Thank you to everyone for replying. I'm pretty satisfied now that there is no trick to prevent grub installing unless an option is given during installation. Maybe in future, more distros will have the option 🤷♂️
I was trying to avoid making it more complicated, but I might actually look into this anyway. It seems it might be a more tidy way to install them all together. Thanks 👍
Install Linux distros without grub??
I use rEFInd as my boot manager and sometimes I like to dual boot a new linux distro (just to try out) which I install with a live USB....