Linux noob here. Usually in Windows if I have a 1TB SSD, I make a 250GB partition for Windows and all of its things and I use the rest for a second partition where I install my stuff and store my files.
Usually in case Windows decides to go belly up, I still have my files. In more than 20 years it has never happened but I've always done it like that. I mean if Windows goes bad, I can still remove the drive and insert it into a different PC and copy my files away.
Should I shrink Partition 3 and make another one? Or keep it as it is? If I would, I read that I need to boot with a live usb to be able to shrink it. What kind of partition would I make?
Feels like good practice to have
/homemounted on a separate partition if you want to install a different distro or reinstall but I've never had to test the theory.I've heard the same but I went with the defaults as a n00b. Ubuntu made me create a /swap and other sub directories.
Is the screenshot you posted from Ubuntu or Pop!_OS? Because partition 4 is a swap partition.
But I agree with mudeth, having a system partition and a dedicated /home one is a decent setup.