Ubuntu Desktop on Raspberry Pi arrived officially with the Ubuntu 20.10 (Groovy Gorilla) release, but it was only recommended for the Raspberry Pi 4 models with 4GB or 8GB RAM, Raspberry Pi 400, as well as Raspberry Pi CM4 (Compute Module 4).
Well, that’s about to change as Canonical wants to make Ubuntu Desktop work smoothly on the Raspberry Pi 4 model with 2GB of RAM, and the secret to this performance boost is to enable the zswap feature in the Linux kernel.
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