I have tried www.myexample.pfd#page=1 but does not work. When I tried other pages it works fine but except on page 1 of the pdf.
This is like many browser commands down to user setting.
Here I asked for page 1 and get page 2 because I was viewing page 2 last time
If I change this setting to off
Then I can expect page 1
To see how this works try these two links RIGHT CLICK open new window should with above setting remember page 2 and thus NOT open Page 1 in second window
https://www.africau.edu/images/default/sample.pdf#page=2 https://www.africau.edu/images/default/sample.pdf#page=1
A secondary problem is Edge may also resist reloading the same file
Based on the answer I got from Yu Zhou https://stackoverflow.com/a/74609539/10802527 this usually works.
So try something like this for page 1 this should work by treating the file as if a different one.
https://www.africau.edu/images/default/sample.pdf?p=1#page=1