Establishing mushrooms in the garden best practice?

I saw this ad showing how to “plant” a mushroom fruiting bag directly into a garden bed to grow, and now I’m wondering what the best methods are for establishing a specific colony in the garden. I have wine cap in my future plans and perhaps naively assumed you just syringed inoculant into the mulch.

Thoughts? Would mushrooms “planted” this way spread and stick around? Even if it didn’t spread effectively, would this situation benefit that particular garden bed? I can buy the bags locally but not the syringes, I would have to order them and it would be a huge bonus for me if I could buy a “kit” from our local guy instead.

Please excuse me if I am mycology illiterate, I am fairly new to this part of my soil health.