– How do I remove the menu on a landing page on both desktop and mobile version ?
1. Go to appearance > elements, and activate the Disable element module.
2. Go to appearance > elements, create a new layout element.
3. Tick the Site header, mobile header, primary navigation under the disable elements tab.
4. Choose front page as location under the display rules tab, publish the element.
– How do I remove site tittle or/and logo (I’m not sure yet what I will choose) ?
Is it site-wide? If so, go to customizer > site identity, you can remove/upload/update logo and site title there.