Im trying to download the simrealist bills mod (i already have it i just need to update it) but there is literally no download button anywhere, it shows the links that are meant to be downloaded but I cant click them, the download button is just not there

You’ll have to take it up with the developer of the page, they control what’s there.

It sure looks strange. An install guide would be good. But did you try the main page of the mods? There is a download button and it says, it contains all of them.