Watch the video. That guy highlights the downgrades pretty well and with hard, tangible proof from Apple's own website and published information.
Defenders will spin that none of that matters, that "99% won't be able to notice", etc. but they shouldn't have to defend. Progress should be FORWARD, not selectively backwards to harvest a few more bucks of margin.
I principally disagree, although it does seem that specifically the M3Pro is less impressive than the other two. But, I will always argue that moving forward as a whole can totally be done by taking one step back in certain areas. Apple does this all the time. Having mantras that every individual component must be a step-up from before is not how you deliver the best, most coherent overall product.
But, this is on a principal level. I repeat, I do agree that M3Pro is less impressive. I reserve judgement on whether it is actually a step back though, until we get actual reviews and benchmarks.
This being said, the video does highlight several areas where there are improvements that Apple didn't mention, it's not all bad, and saying M3 is a downgrade is pushing it.
Also, I believe Apple has been pushing hard to avoid raising the price, given the increases in materials, shipping etc that the world has seen. The "shell" of a Mac is likely a lot more expensive compared to the internals, compared to most competitors, for instance in the amount of aluminum used. So Apple will have been hit pretty hard on materials cost. I'm not following prices for the competitors, so I have no clue whether Lenovo prices are up or down, this is just based on my experience in my own line of work.