Cannot install linux versions, unity hub download button does nothing

Running Linux mint 20, I’m able to download versions which come up in the hub when I hit the Installs/Add button, but since I have to install a very specific version, I go to the download archive page.
On the download archive page I goto the version I need 2019.4.18 and click the green Unity Hub button, which in windows opens the hub and brings the version into the hub to be available to download.
On linux, the green button does nothing, I mean click…nothing.
I’m running the latest version of Firefox, 85.0
Thanks

Bumping this. I’m having the same problem. I cannot install archived versions of Unity through the Unity Hub on linux. Clicking the “Unity Hub” button on one of the archived versions does nothing. I’ve tried both Firefox and Chrome.

Is there a link to a direct-download page?

Wanted to share that archive is not Linux supported.