I’m no expert by any means but I do the following.
Have the site running then press the small square with an upward facing arrow through it in the top right of the screen then press add bookmark icon.
This adds an icon to the dock which will always show from the home screen. From the dock you can move an icon to anywhere on the screen.
View attachment 68281
My home screen, wildcamping icon second in from left on dock bottom of screen.
View attachment 68280
This may also help you.
Add icons to the dock on iPad (bottom of the screen)