Hi Marc,
I am using MountainDuck on my Mac with Wasabi Cloud Storage (S3). Works like a charm. Just mount your Cloud Storage with MD as a drive und move files in or out. En-/Decryption works in the background. Using it for over 1 year without any issues.
That depends on your ISP speed, the size of the file and the number of files in a directory. I have no problems but of course it’s slower than working with a file on my local device (M1 Macbook). But I have no problems listing cloud directories with 200 files instantaneously and working real-time with Excel or Word files. Saving takes a second but it’s not slow at all. My ISP speed is 300/50 Mbps.
Hope this helps.
Edit: just moved a 700MB image from cloud storage to local ssd instantaneously (under 2 sec).
Yes. I use rclone with the same Wasabi storage on my Linux laptop (Thinkpad T480 with an i7 and a Samsung 970 Evo Plus SSD) and it’s significantly slower.