DistroWatch published a review on Ubuntu Linux 21.10.

Ubuntu 21.10

Ubuntu 21.10 (code name Impish Indri) and its many variant flavors were released on October 14. This release is a non-Long Term Support release, meaning it will be supported for nine months. Like all new releases of Ubuntu, Ubuntu 21.10 comes with numerous updates and enhancements. The most notable of these changes are the customized GNOME 40 desktop and Firefox being a Snap instead of a Deb package. Both of these changes are explored in depth in this review.

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