rhel 8.1:
rhythmbox:
- about rhythmbox: about | credits | license
- about dialog says 'Rhythmbox Website'
- menu: add music, view, tools, plugins, preferences, help, about, quit
- mising icon in help
- no hamburger menu

calculator:
- about calculator: about | credits
- no link to website
- menu: new window, preferences, keyboard shortcuts, help, about, quit
- software shows different icon than help
- no hamburger menu

characters:
- about: about | credits
- no link to website
- menu: about, quit
- no help
- hamburger menu