Since Airtame is HDMI certified, it is compatible with all other HDMI certified receivers. This means that if you'd like to use Airtame with an HDMI switch, splitter, video wall controller or matrix, it is possible so long as it too is HDMI certified.
With video walls, the only drawback can be that stretching a compressed 1080p image over many screens may not look as sharp as you may hope for. Since the Airtame video stream is compressed, you may be able to notice the compression degradation more when the image is stretched over a large screen surface.
☝️We cannot recommend any specific hardware for this use case, as we have not tested internally - but any HDMI certified product should work.