You may want to check this tutorial by Colin Smith.
New In April 2023 update in Lightroom Classic 12.3 is the ability to open Multiple images in Photoshop Layers as Smart Objects. This is Huge because it now means we have way more flexibility in editing composites without losing access to the original Lightroom edits, ever! I’m going to show you the workflow here and point out some useful features as well as pitfalls to avoid.