Since no one expounded on this earlier when talking about 1x12 cabs and shit and what is the difference between a "Thiele" and a non Thiele cab.
The Thiele designation means that the enclosure was built with a sprinkle of extra science and an eye towards concepts like Heimholtz resonance.
Pretty much all loudspeaker enclosures are tuned during the design process. But some are tuned more exhaustively than others. Thiele was the name of the guy who was involved in a lot of that early stuff.
The important bit to know, is that doesn't make it better. It might or it might not. Opinions vary. The past 70 years of loudspeaker design have featured all kinds of advancements that have fallen in and out of fashion that work with concepts like heimholtz resonance supposedly "better" than a loudspeaker design that is essentially a box.
So, in spite of the fact that all professional loudspeaker enclosures are "tuned" to some extent, some have more thought given to it than others. Functionally, unless you want to read up on Heimholtz resonance, which is no fun, the difference is "a box vs. a slightly more pretentious box"
Ported enclosures are like any other design innovation. They fall in and out of fashion, so it's not automatically going to be better, although a lot of people fucking love them. More common in bass cabs.
Folded horn designs and passive radiators are two other things that were used for the same sorts of purposes of somehow having an advantage over a more basic design that have fallen out of fashion. I have passive radiators in my mains. Cool stuff. Folded horn designs are also really fucking cool.
Never really caught on in guitar cabs, which are less complex by nature due to not having crossovers and shit like that.