The Console of your browser may display errors that can cause online applications to disfunction compared between browsers and devices. Finding the Console can therefore be essential for analyzing issues.
Vivaldi
To display the Console on Vivaldi:
Firefox
To display the Console on Firefox:
Google Chrome
To display the Console on Google Chrome:
Microsoft Edge
To display the Console on Microsoft Edge:
https://www.elevenforum.com/t/open-browser-console-in-microsoft-edge.22843/
Apple Safari
To display the console on Apple Safari: