Pyrex was originally made of borosilicate glass. This made it able to withstand extreme changes in temperature and so it was used often in laboratory glassware.
Pyrex was bought out years ago by some other company who proceeded to use the more common soda lime glass that may not be as resistant to temperature changes (this is controversial). That’s why the bottom of new Pyrex glassware is imprinted with a slew of warnings, and probably why it is so cheap nowadays.
They still make laboratory glassware of borosilicate glass, but what you find at the local drug store is soda lime glass.
The soda lime glass Pyrex should not be used on stove top, although I don’t see why it can’t be used in the oven or microwave, except that you want to avoid extreme temperature changes that may cause the glass to shatter.
I don’t know that there is much of a difference between any other tempered glass and Pyrex these days. They usually say they are microwave/oven/dishwasher/etc safe if they are. I’d get down to a thrift store or go on EBay and find vintage Pyrex that was made with borosilicate.