You may see in the BIAB 2025 description (I didn't) that there is a "muted electric guitar" in the new Pop & Rock Real Tracks. I didn't read it because I usually run through the styles when I buy BIAB. So I wrote a post recommending Rubber Bridge as a new style, like a dummy.

Maybe I should read the description? Doh!
They call it "muted electric guitar." You can find it in the Realtracks Set 459: Songwriter Potpourri, styles 99-104. PGMusic says this is a technique where "a foam mute is placed under the bridge to get a great muted effect." I've never heard of anybody using foam, but maybe it