120 – 180GB SSDs are a good fit with Linux. Generally, Linux will fit into 20GB and leave 100Gb for /home. The swap partition is kind of a variable which make 180GB more attractive for computers which will use hibernate, but 120GB is more then enough room for Linux.

Is 128GB enough for Linux?

128GB for Windows and Linux only is more than enough. You’ll probably have upgraded to a much bigger SSD by the time that’s too small for the operative systems. With a 1TB HDD you’ll have plenty of space for your video games and other stuff.

Is 120GB enough for Ubuntu?

120GB is more than enough to run Ubuntu smoothly. If you are okay with having less disk space to keep files and install apps etc.. then feel free to install it. Yes Enough if that is the only OS. … yes 120gb is more than enough for ubuntu 18.04+ operating system.