[not a bug - solved] 3.70 beta versions not available on Steam (Linux)

[d2shr6o8av]

I right clicked on Unreal World, clicked on Properties>Betas>Select the beta you would like to opt in: (drop down menu), and the only option is "None".
I checked if I didn't have access to RimWorld's betas, but they are available.

Operating System Version:
    "Manjaro Linux" (64 bit)
    Kernel Name:  Linux
    Kernel Version:  5.10.61-1-MANJARO
    X Server Vendor:  The X.Org Foundation
    X Server Release:  12013000
    X Window Manager:  KWin
    Steam Runtime Version:  <Runtime disabled>

[Erkka]

I have never used Steam so much, so I really don't know if my advice is correct. But what I suggest you might try is to read the Beta release news on Steam.,

[d2shr6o8av]

Ah! There's a password. OK, I got access.