You can use ShortPoint to hide SharePoint and Office 365 ribbon and suite bar. This will improve the user experience a lot.
First, you need to activate ShortPoint site customization feature in your site.
- Open shortPoint branding feature: Site Settings - ShortPoint Dashboard - Site Customization - Customize my site
- ShortPoint Branding Feature will be activated
If you want to hide the ribbon and suite bar in all site pages
Navigate to General Settings - Pages Elements
If you want to hide the ribbon and suite bar only on the home page:
Navigate to General Settings - Home Page Elements
If you want to hide the ribbon and suite bar on mobile:
Navigate to Mobile Settings - Mobile Elements
After that, all you have to do is to enable/disable Hide Ribbon option.
After that, click on Publish button to publish your changes.