Just want to ask some questions as I am considering installing linux as dual boot on a single drive in its own partition

• what partitions do linux distros need to function ?
• what linux distros support secure boot with nvidia drivers ?
• is it bad idea to install linux on a single drive in its own partition ?
• what precautions should I take other than backing up my hard drive before doing dual boot ?
• I have heard some linux distros like linux mint and ubuntu have a habit of touching other efi partitions when being told not to, are there any other distros that do that ?
• Expanding on the previous question qre there any distros that touch or corruption windows partitions ?
• How can I ensure my dual boot linux install won’t touch my windows partition at all if I install dual boot linux ?
• Is there anything else I should be aware about ?