We have radiant heated concrete floors and installed engineered oak floors glued down in one large room to see how it would do through the winter before installing in whole house. It still looks perfect and we are very happy with it. It was Casabella brand.

I can say now that having had glue down engineered oak that heat transmission was not a problem.

We converted our unfinished basement (on concrete slab) to an ADU apartment with radiant heating; we chose engineered white oak flooring for the living areas; no problems whatsoever. FWIW in the ADU we also have ceramic tile flooring in the bathroom and Marmoleum in the utility room, all are great with the radiant heating. I would not change a thing.

Our new engineered white oak is working out well with our radiant heat floors, also!