I have to disagree with comparing the Bathys to other Focal headphones. And it is because of what you're saying. The Bathys is a self-contained unit. The other Focal headphones, you need to bring more equipment, which a bare minimum is a wire. Many portable DAC/amps. It's not a true apple-to-apple comparison.
The issue is that that are too many variables that cannot be controlled/removed. It's possible to use the same DAC or amp, but it has to be through a 3.5mm unbalanced output. The minor problem here, you can't use the same cable; so at best you can only use cables of similar build and type. If you use the USB C DAC mode, you're comparing the differing DACs and speakers. If you have used the Bathys with an external DAC or amp, it can have a different experience because "coloring" of the DAC or volume difference because of power. If you could get the variables the same where you're only comparing the speakers, it would not be unreasonable to have a very similar sound.
That said, it's not unreasonable to discuss the sound tonal differences and use the other headphones are reference points. This allows the reader to understand the differences or similarities being discussed. In this kind of setting, most comparisons are about which is better, which in this case is not really reasonable. It's about the problem to be resolved. Understand what the Bathys are trying are to fill. It's a very portable, travel-friendly, and self-contained headphone with significantly better "sound" for people who learn or are audiophiles, of which there are very few. Sony, Bose, Apple, Beats, etc do not get close to the mark.
In fact, I think it is great that despite the main purpose, they made the headphones more robust by including USB C DAC and the 3.5mm port. I cannot think of headphone that includes a DAC you can use via USB cable. There are not many that include 3.5mm port; although not the biggest fan of having to turn on the headphones in this mode, but it's obvious to make use the ANC. They should have included a truly passive mode even though the ANC would not be accessible.
The bottom line, is one really going to use the Bathys to replace Celeste, Radiance... it's possible. Stellia, I would assume highly unlikely. Clear or Clear MG, is another possibility, but it the "sound" would not be the primary reason. More reasonably, I think Bathys is complementary headphones to use on the go or traveling or when moving about the house, and don't want to worry a cable being caught on something such as during house cleaning. Anatoly, and weak evidence to this point, I use myself. I bought this specifically for travel and doing things around the house. I have TWS IEMs that work fine, but I wanted something out of my ear around the house. I have a portable DAC/amp I can use, but I did not to worry about the cable getting caught on a cabinet handle or something and the headphones flying off. The additional to use traveling is a nice bonus for me. Like someone mentioned earlier, I too live in an area, and wearing these outside the home is asking to be attacked. I would not use these in the gym; I think TWS EIMs are more appropriate because of the sweat or work equipment potentially hitting them.
