Except those don't work with all, all the time.
They pretty much do if one knows how to use them.
While I mostly use a Wiha-branded Pressmaster Embla now, before I bought that I never had trouble using the standard manual tool. Until the Embla it worked better than every automatic tool I've tried: the Irwin "self-adjusting" one with serrated clamps on top that never grip right, the one with two knives and different hole sizes that only works well with wires that are sized exactly right, etc.
By contrast, the forged pliers-style strippers work with every type of small- or medium-sized wire I've tried: from white or yellow Romex, speaker wires ranging from 10-16AWG (including with PTFE insulation), line level cables from 22-28AWG, etc. They are generally too small for really thick stuff, such as welding cable.
They must be adjusted for changing strip sizes. If you are only working on one size, they are great, otherwise you have a little trial & error getting it just right.
Or you just ignore the adjustment screw entirely. A human with functioning nerves electrically connected to a working brain can easily feel the difference between insulation and copper!
On solid core wire the only real differences are that the pulling motion to remove the insulation using the stamped holey thing is less natural, and that one has nothing to gauge exactly how much insulation is being stripped. But stranded wire varies widely in conductor OD due to strand thickness, strand shape (hexagonal vs. round), etc. So a tool with a 1-size-fits-something-random stripping hole is not going to cut as cleanly as an infinitely-adjustable stripper.
No idea where you are from, but I know some European wiring has round insulation so they would be fine for, but in the USA it is oblong.
The shape of the insulation is irrelevant. It could be round, oblong square, spikey, etc. The only thing that matters is the shape of the conductor underneath it.
Or are you referring to the outer jacket? If so, neither stripping tool is called for. Rather, one uses a knife, scissors, or something like this: