Worked in a commercial bakery as well as a grocery store bakery. I promise you that bread can be heated from frozen and you would not know the difference. There’s a really good chance the bakery you are buying bread from contracts a commercial bread baker. Bread ovens are big and many don’t have the space for them and non-bread ovens for other stuff.

Like I said, if the bread/pastry tastes like shit it will taste just as shit fresh as it would frozen. Good bread/pastries frozen and dethawed properly lose an insignificant amount of quality.

Do an experiment. Take your fresh bread from a bakery, freeze it, thaw it out, and see how much the quality actually diminishes. I wager that it doesn't by much in most use cases. For example, making toast? You could not tell me you can tell a difference between a slice that was frozen versus one that was never frozen.

And, ofc, some pastries are not as forgiving when being frozen as others. But regular sliced bread, absolutely.