@locamama Copy paste does work for me but can be tricky I must admit. I also have libreoffice installed in libertine via system settings Libertine setup. If I remember correctly I might have added suite to the end don't forget to restart after installing and refreshing X apps scope.
Anbox is tricky and not recommended for daily driver. There is a specific section on through forum for that will add link later as on mobile now. Last one never tried will have a go though.
L