@leocg Very good. How can I Do it?

From one day to the other day version 100.0.4815.76 was installed. Because the design before seems to me better readable, my question: Can I reinstall the version before? On my other PCs there are still the older versions.

I have registered 6 PCs and Tablets/Smartphones under my Opera account for sychronisation . If I open my account I find only 3 devices.
Where are the others? Synchronisation does not work with all devices. It seems that some devices save bookmarks locally.