Apple under-speccing their machines like they’ve been doing since the dawn of time is not some kind of indicator of any trends. You can buy $350 PC laptops that come with 12GB of RAM (example: https://www.staples.com/asus-vivobook-x1404-14-laptop-intel-...)

RAM shortages will be quite temporary. Making predictions based on individual component shortages has never been a winning strategy in the history of the industry. Next you’ll tell me that graphics cards will be impossible to get because of blockchain.