Yes, it does. Ubuntu always creates a swap partition if you choose automatic install.
Is swap necessary for Ubuntu?
If you need hibernation, a swap of the size of RAM becomes necessary for Ubuntu. … If RAM is less than 1 GB, swap size should be at least the size of RAM and at most double the size of RAM. If RAM is more than 1 GB, swap size should be at least equal to the square root of the RAM size and at most double the size of RAM.
Does Ubuntu 20.04 need a swap partition?
Well, it depends. If you want to hibernate you will need a separate /swap partition (see below). /swap is used as a virtual memory. Ubuntu uses it when you run out of RAM to prevent your system from crashing. However, new versions of Ubuntu (After 18.04) have a swap file in /root .