Click on the Download option at the top, and OneDrive will now download all files to the PC at once. It worked just fine for me on my Windows 11 PC and here is the screenshot.

Use the Downloads area of the browser's settings to change Chrome's download location. Select Change to pick which folder ...

To download files from Dropbox, you'll need to open Dropbox in an internet browser and find the file you want.

If you want to save memories from your Google Photos, saving each pic one by one can be a headache. Here's how to do it all at once easily.