My mistake, I did not take into consideration it was a Twinmotion question.
There is a version on the Unreal website https://www.unrealengine.com/en-US/datasmith/plugins that was released with UE 5.6.0 Preview.
Current Twinmotion version is not on 5.6 yet, and this plugin is on Preview code, thus this plugin cannot be considered production ready for Twinmotion usage and this is why it is not on TM plugin page yet.
Depending on your risk exposure, you could still use that 5.6.0 version of the plugin
- if you have sketchup 2024 and are on a production project then keep using Sketchup 2024 and the 5.5 version of the plugin.
- If you only have sketchup 2025, or are on a test machine you could try it
If you get the 5.6.0Preview plugin, update the plugin once the 5.6.X versions are released and move onto the version from TM site as soon as it is out.