Here you go. 1.5 million views. https://www.youtube.com/watch?v=BpS_MEHfgac

@live_wire_oak that's why I wanted what folks here have used and like, etc. thanks.

This is who we are going with FWIW https://www.sheppardbrackets.com/shelf-kits-solid-wood-floating-shelves I wanted a beefy bracket that I could position anywhere along the wall and this is the best I found. The owner will also paint the shelving to your spec at no extra charge (if you don't want a solid wood type) Good Luck!

following,as we need to put a floating shelf in the laundry room.

We just did our pantry with 2x12's and black brackets from amazon. Wood fit perfectly depth wise into the brackets. We secured each bracket to the studs. You can make the wood look as rustic or smooth as you want, we opted to sand and stain and round the edges a bit.

After install, before stain.

Pic from underneath and this is after stain..