IEC 62368-1 places an upper bound on the temperature of materials in electronic devices that are likely to come into contact with users' skin, and that's incorporated into EU regulations[1]. You have two ways to achieve that - add enough cooling such that it's impossible for the device to ever produce enough heat to get that hot, or throttle components that are generating heat if the device is getting close to that temperature. The former requires a cooling system that's going to be significant overkill for most users most of the time, resulting in more expensive hardware that's bigger and heavier.

So, instead, you see the latter. This means that, yes, even if using official Intel DPTF drivers, systems will still occasionally thermally throttle. They may do so even if the CPU itself is not at a dangerous temperature, because the rest of the system may still be too hot and the CPU is the easiest tunable knob in terms of heat generation.

So, yeah, you can still obtain better performance by disabling DPTF and overriding power limits. And in the process you'll end up with a system that will become hotter than permitted by international standards, and you'll risk various types of failure ranging from inconvenient (the adhesive sticking things like rubber feet to the bottom of the machine tending to melt) to expensive (the unexpected levels of thermal expansion cycles causing components to fail earlier). It's fine that you're not worried about these things, but it's just straight up wrong to recommend that people override those limits without being clear about potential outcomes.

[1] https://eur-lex.europa.eu/legal-content/EN/TXT/HTML/?uri=CEL...

(Edit: replaced IEC 60950-1 with 62368-1, which is the up to date version, and linked to EU incorporation of that spec)