As mentioned earlier Android users can work around this until it's fixed. Search for an older APK file on a site like APK mirror. I used a "Deco" application APK from June 2023 and I could use spaces.

I agree this is so horrible. I have over a hundred devices that already have the saved password with a space. Changing them is not an option. I deleted the Deco app on my phone and downloaded an APK...