Whilst we explore options towards a permanent fix for the LOD issues faced for VR users in the A350 Airliner for Microsoft Flight Simulator 2024, we have two workaround methods for our customers to try.
NOTE: You will need to enable this workaround each time you start flight simulator.
Head into Settings, in the top right corner, then General, then Advanced Options, and from there, you can enable developer mode by clicking the option.

Head into Debug, and select Debug model LODs.

Set LOD Limits to Forced Inactive.
You can then close the debug LODs menu, and disable developer mode from the settings menu. If you don’t disable the developer mode, features such as frame generation will not function if you expect them to.
You can then proceed to load into the A350 Airliner as you usually would.

If Option 1 isn’t working as expected, you can check ‘Enable force active lod’ and ensure the slider is set to 0 as shown below - using this option will work for sure, but will likely cause a noticeable performance impact.
You can then close the LOD Debug box, and exit developer mode via the settings menu. If you don’t disable the developer mode, features such as frame generation will not function if you expect them to.