Changing from portrait to landscape may cause issues with tabs

When having 2 tabs (probably the same with more), switching to the second tab, and rotating device from portrait to landscape, I can observe

• strange animation where the page in the second tab slowly occupies the space in width from portrait width to the new one. In the start, page is pushed to the right and widens on the left. Sometimes, page from other tab is shown as well

• sometimes, just two pages are shown with the option to scroll them side-by-side. Cool, but unexpected feature and there is no way to get rid of it :)

I don't know how tabs are realized in Angelfish, its probably some side effect of it. Note that it would be great to get ability to have Tabs/Settings/Bookmarks pages to be swiped out using Kirigami swipe gesture. Just mentioning it here if the tabs design somehow prevents it...