Why get insulted, if a more qualified person informs you of what you could not know without yourself having the same experience?
Light is an EM field, as is infrared, they are all EM, just different frequencies.
When we say "Radiation", in the case of heat, we mean non-ionising, it does not mean particle radiation like x-rays, though photons might be considered as particles, you probably know they are ambigious and can be treated as either waves or particles. The lower the frequency of EM, the more it acts towards a pure wave. Infrared (heat) has to be treated as just waves.
It would be cool if you just accept I have done an awful lot more on this than you, we might stop butting heads. Otherwise it just feels to me like you are trying to gaslight at every opportunity.
The concepts you described covering the three different modes of heat transfer are high school physics.
Maxwells Equations are 2nd or 3rd year Electrical and Electronics degree theory, you would need a whole book and at least a year spent studying it, and everything leading up to it to describe it in any detail. It took twenty years for anyone other than Maxwell to originally understand, after he wrote his main treatise on it, everyone called him crazy all that time until understanding finally sunk in, its not simple! The book in my profile here is on transformers, which uses EM field theory, and in which I have historical patents. Like I said, really understanding it is a kind of superpower, there are not many who really do.