cold food hot bowl is a direct sign of not having good microwaveable dishes.
My in laws have this white corelle stuff that swears it's microwave safe on the bottom but it gets hot as fuck when you reheat food. i don't think it's just because it's thin either if you try to melt butter in it the dishes get very hot.
The glass bentgo containers i use for storing food seem to be completely invisible to the microwaves. You can get food bubbling hot and still grab the glass container to pull it out and it's completely cool.
Some of you need to learn to turn down the power on your microwave and cook your food for longer, it results in a more even temp across the whole plate and won’t dry things out as easily.