Pop an particular area of a website's tab, resize it and ability to keep it always on top

i am trying to find a way to keep a tab to be always on top but found that this feature not available on brave… does any extension offer a way to do this ?

current setup while i simultaneously want to use 2 tabs

Expectation to keep it always on top while i put browser focus on brave search tab…

the Spotify window should not go back and hide

i want to pop out this tab and resize it without all these vertical bar, bookmarks bar, url address bar and the top windows area being shown like this
:point_down: for true immersion and keep it always on top while other tabs are being used

post has been edited with more info now and errors rectified