No, and I'm prepared to accept that there are exceptions (but even then, they must have limits as the physics of acoustics demands compromises when limited to the restrictive size of laptops).
What I should have said is that whilst the electrical signal from the DAC is usually excellent (far better than almost any analog-only system), it's interface with the acoustic world (the speakers and their acoustic environment, baffling, enclosures etc.) is mostly terrible and at best only a poor compromise.
It simply isn't possible with traditional speaker technology to provide an optimal environment inside a laptop. If it were then speaker manufacturers would have miniaturized their huge enclosures years ago.
My complaint is that most laptop manufacturers don't even try to work within those restrictive bounds and that makes things much worse.
The matter of having insufficient gain has little or nothing to do with the actual quality of the signal coming from the audio amplifier output, again it's usually quite excellent if one connects to headphones or to an external HiFi system.
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BTW, I never said laptops had good audio (acoustic sound as opposed to electrical output). As far as I'm concerned their acoustics are all lousy when compared with a decent HiFi system.
Sorry, I wrongly assumed that all readers were skilled in electronics and thus would have made a clear distinction between the quality of the audio signal within the electronics and that which actually emanates from the speakers. In fact, the electrical audio signals are nearly always several orders of magnitude better than what speakers can actually reproduce.
Electronics people usually take that for granted.