WMS layer properties window freezes when the origin the GetCapabilities document of the origin sever contains thousands of layers

[giohappy]

What is the bug or the crash?

The Information tab inside the properties window of a WMS layer shows the full list of layers parsed from the GetCapabilities document when the layer is loaded.

This is problematic when the WMS service includes hundreds or thousands of layers. QGIS freezes or crashes when the Information tab is clicked.

In my opinion, the "Other layers" section under "Information from Provider" is not required and should be removed, since the layer's properties window is related to the single layer, not the origin WMS service.

Steps to reproduce the issue

1. Configure a WMS service where thousands of layers are published, https://stable.demo.geonode.org/geoserver/ows as an exmplae.
2. Load any layer
3. Open the layer's dialog and navigate to the Information tab,

Versions

Tested on QGIS 3.34 and 3.40

Supported QGIS version

• I'm running a supported QGIS version according to the roadmap.