I run Manjaro Linux on my main desktop workstation and I use Thunderbird as a desktop email client (primarily because it integrates with DecSync via a Radicale plugin). Thunderbird released a new version (102) with a more modern design and user interface. However, I had been planning to stick with the previous stable version (91) until the Thunderbird in the official Manjaro repositories changed. After having some minor UI issues, I decided to take the plunge and install Thunderbird 102 from the Arch User Repository (see another post about the AUR). The switch went smoothly and everything from re-configuring my email and chat accounts to syncing my contacts, tasks, and calendar with the Radicale DecSync plugin went perfectly. Nevertheless, I look forward to being able to switch to the Manjaro repository version of Thunderbird once it catches up to the AUR version.