I don't see any function that requires members of Parliament to be physically present. It could be done virtually, though I would like to add to your description that I consider the House of Commons to also be a public forum, which means that freedom of expression has to be exercised in public and that is what is difficult to reconcile with virtual work of the House of Commons.
There will be a challenge.
There is a challenge for everyone here to make sure that democracy is still alive, that the media is still able to cover the work of the House of Commons and that the House of Commons itself stays as a public forum.
In my opinion, this is the great challenge ahead of us if we are to move towards more work in virtual format. It is a matter of really ensuring, on the one hand, that the media maintain the quality of coverage of the proceedings of the House and, on the other, that the House, despite its virtual character, maintains its public nature.