I found the following symptoms. And may I ask you kindly for improvements here?

Symptom 1:
Entered or pasted coordinates are not recognised if they contain special typographic characters such as typographic apostrophes.

Symptom 2:
Coordinates are not recognised if a required comma is missing or an additional comma is present.

Use cases

Use case 1.1:
Open the OSMAND app.
Select a location.
Copy the coordinates in DMS format within OSMAND.
Open the Windy app on an Android device.
Open the search function and paste the copied coordinates from the clipboard.

Use case 1.2:
Open the Windy web app in the Firefox browser on a notebook.
Open the search function and paste the copied coordinates containing typographic apostrophes.

Use Case 1 Expected Results:
The coordinates should be recognised correctly.

Use Case 1 Actual Results:
The coordinates are not recognised.

Use case 2.1:
Enter coordinates in DMS, DMM or DD format in the Windy app search function, omitting a required comma or inserting an additional comma.

Use case 2.2:
Enter coordinates in DMS, DMM, or DD format into the Windy web app search function in the Firefox browser on a laptop, omitting a required comma or inserting an additional comma.

Use Case 2 Expected Results:
The coordinates should be recognised correctly.

Use Case 2 Actual Results:
The coordinates are not recognised.

Root cause for symptom 1
I found out that the root cause for symptom 1 is probably the character encoding of the copied coordinates.
When I changed the copied coordinates to ASCII/ANSI then the coordniates will be recognized by Windy.

Summary:
The input and insertion of coordinates in the search function should be both character set-independent and comma-independent in order to enable the problem-free transfer of coordinates from other applications.

Versions used:

Windy app version 42.5.3 on Samsung Android
Windy web application version 43.0.0 in the Firefox browser version 130.0 on a notebook
OsmAnd+ app version 4.8.6

I have not checked it on other mobile devices.