Instead of starting a new thread, perhaps I can bump this one?
My wife and I each have our own M1 Air's now, little monsters, but because we opted for the 256GB versions, we've had to move all our photo and video libraries onto external drives, a pair of Seagate One Touch 4TB's. They work, but we can pretty much go have breakfast while waiting for some of the Photo libraries to open.
So my question is, who here has experience using a Photos library bigger than 700GB and containing more than 105k images, lots of them RAW, on a Samsung T7 and an M1 machine?
I would also not bother with a dongle when using such a drive as you can connect directly with USB-C.
Interestingly enough, an iMovie library of some 700GB and mostly 1080HD or less isn't running too bad on the Seagate HDD, but Photos is practically unusable.
I'm also thinking to go straight for the T7 and not bother with the T5, as the price difference isn't that big whereas the speed is double. I can get a T7-2TB on Amazon for €277. I paid a paltry €90 for the Seagate 4TB.
And here I am old enough to remember how long it took to save a one page plain text document with Lotus 1 2 3 on a 6" floppy disk...