After my experience when I changed to the bootable SSD on my Pi 3B+, I think the only real advantage I will have when this facility is added to the Pi 4, is that loading pictures from my digital camera will not tie up a USB 3 port
It is great that the Raspberry Pi is so flexible and the team so dedicated.
I haven't turned on another of my computers for two weeks now other than to print something, or simply to boot one of the computers, any of which performs an auto clean of my inkjet printers on boot.
On the odd occasions when I had another computer running, I am surprised by how sluggish the more powerful computers are compared with the Pi 4, when doing the mundane tasks like browsing or word processing now that the Pi 4 is running on SSD.
I understand that the boot system differs from that in the Pi 3B+.
Is it likely that the behaviour will end up being similar to that of the Pi 3B+? Once SSD boot is enabled, if the Pi detects a bootable microSD, it will default to booting from that, but of there is a non-bootable microSD, it will just mount it as storage?