Difficulty with Obsidian CSS vs Roam CSS

[DEV_Scribbles]

You could try this:

.cm-hmd-internal-link[data-link-data-href*="QUE"],
.markdown-preview-view a[href*="QUE"] {
  color: teal !important;
}

.cm-hmd-internal-link[data-link-data-href*="QUE"]::before,
.markdown-preview-view a[href*="QUE"]::before {
  content: "🔎 ";
}

Downside is it cannot style uncreated note links in edit mode