I’m referring to the vertical solid line at 1:17. That’s 50% aerobic and 50% anaerobic. That’s just a little bit faster than it takes to run an 800m race, so that modeling seems about right.
Your question is about LT2. That’s not LT2
In WKO, if you click to the right of mFTP (maybe at 45mins), you’ll get a value and percentage contribution for roughly LT2. It’s going to be overwhelmingly aerobic and other than initial familiarity not much use.
You are referring to 268 watts of a total of 530 watts. Again, 268 + 263 = 530. It is modeling the contribution at 1:17. So to answer your original question, the answer is no, it does not correlate to LT2. It might be close (because any power at roughly 85-95% mFTP could be LT2), but it would just be coincidental. Also, if LT2 went up, that power value at 85-95% mFTP would go up as well, so in that sense it meets one criteria of correlation (directionality), but the entire curve at that point would move with training/detraining. So any single value in that range “correlates” to LT2 because every value in that range “correlates” to LT2. But that crossover of contribution (50/50) is nothing special.