For example, up until MacBookPro M2, MacBookPro M2 came with M2 Pro chip.

However, starting with M3, Apple lowered the MacBookPro MSRP to $1599, but its base configuration was downgraded to M3 chip from M3 Pro. To get the M3 Pro, you had to pay $1999. There's substantial performance between the two.

Same with M4. To get the M4 Pro chip, you had to pay $1999.

Now to get M5 Pro chip, it's $2199. Still a good value, but just saying it's a deviation from the trend.