The eye strain you are experiencing isn't due to the screen being close (unless you have a special eye condition). VR headsets have a focal point of 3 - 9 ft. What you are likely experiencing is an IPD issue. The Rift S doesn't have IPD adjustment, which means it won't work for everyone. For those that are outside the ideal range, you experience eye strain. If you have eyes that are abnormally wide or close, you need a headset with IPD adjustment.
Well you can already play alyx with mouse and keyboard. The feature is built right into the game for testing. That said everyone who has played it like that quickly realize how much the VR features add. The game was designed from the ground up for VR.
1. I have not seen any disruptions to delivery service during the pandemic unless it's international. Delivery is not the problem, production is. I've ordered dozens of computer parts during this pandemic and delivery has been completely normal.
2. The fact that electronics everywhere are sold out seems to suggest that this is precisely the time people are buying expensive electronics. Nearly every headset on the market (except for the bad ones) is sold out and even the used market is drying up. The price of the HTC used has gone from $350 USD to $650 USD. Clearly people are buying.
?? MMS is used to send pictures via text to this day.
Being in Australia, the delivery times (to WA) have blown out massively. Things that take a couple of day are taking several weeks. Yes, you are correct, manufacturing delays (in china) have caused huge shortages. And shops running out of VR will be due to teenagers trying to keep them selves occupied (This does not speak for adults, which would be the majority of people who 'have missed the moment'). So my point of not being able to get one still stands.