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Change 909957 had a related patch set uploaded (by Nik Gkountas; author: Nik Gkountas):

[mediawiki/extensions/ContentTranslation@master] SX: Adjust confirmation step to redirect to the desktop editor

https://gerrit.wikimedia.org/r/909957

Change 909957 merged by jenkins-bot:

[mediawiki/extensions/ContentTranslation@master] SX: Adjust confirmation step to redirect to the desktop editor

https://gerrit.wikimedia.org/r/909957

I experienced an issue that may be relatred to this. I was accessing the mobile version of Test Wikipedia from a desktop device and noticed that when the window was wide it was not possible to start a new translaiton. It seems that the Confirm dialog is redirecting to the desktop experience but keeping the ".m." in the url results in the dashboard reloading instead of starting the translation:

Note that this odes not happen when using a real mobile device or a small window on desktop.
Given that the editor is something that cannot be switched very dynamically (e.g., based on users adjusting the window size in the middle of a translation), we may want to analyze which could be the best approach to determine the device.

For this particular case, I think we could follow a similar approach to the presence (or absence) of the ".m." in the URL. If the user is accessing https://test.m.wikipedia.org/wiki/Special:ContentTranslation the editor to use should be the mobile one. this wold support mobile users but also others on desktop that may want to test the mobile version.

Please, feel free to share other possible approaches.

For the issue mentioned in the previous comment I created a separate follow-up ticket: T337917: Improve platform detection to avoid Section Translation to become unusable on wide windows

This cannot be QAd until we have a place to test it, e.g. T337915: Enable the Unified Content Translation Dashboard on a test wiki.

Waiting for this patch (https://gerrit.wikimedia.org/r/961860) to be deployed with the new CX build.

This task can be considered as done. Users are now properly redirected from the unified dashboard to the desktop editor when needed. The scenarios that were tested here were "New article translation" by selecting a page suggestion from the dashboard, and "New section translation" by selecting a section suggestion from the dashboard.

Screencast from greek (el) wiki: