In order to upgrade to Xfce 4.18 on Xubuntu 22.04 LTS and 22.10 via the Xubuntu QA Staging PPA, OMG! Ubuntu! published a quick tutorial.
How to Install Xfce 4.18 on Ubuntu 22.04
A quick guide showing you how to upgrade to Xfce 4.18 on Xubuntu 22.04 LTS and 22.10 using the Xubuntu QA Staging PPA – though caution is advised.
