Is there an equivalent to this mod for xenForo?

You can try this in the EXTRA.css, but I would think what you have already should have been carried over to sub-forums.

Code:
.nodeList .categoryForumNodeInfo, .nodeList .forumNodeInfo, .nodeList .pageNodeInfo, .nodeList .linkNodeInfo
{
    width: 50%;
    float: left;
}
 
This is my current CSS:

HTML:
.node .nodeText {
margin-right: 0 !important;
}
 
.node .nodeLastPost,
.node .tinyIcon {
display: none !important;
}
 
.node .forum.level_2,
.node .page.level_2,
.node .category_forum.level_2 {
width: 50%;
float: left;
min-height: 70px;
}
 
.nodeList .node.level_1 {
clear: both;
}
 
.nodeList .subForumsPopup
{
    display: none;
}
 
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