Yeah, it's about the same difference here. However, that's offset by the fact that a quality B550 motherboard for the Ryzen is cheaper than the cheapest decent B660 board for the Intel right now by about the same gap. Indeed it's a net saving if you're happy with a fairly basic B550 board, which is easier to get away with because the more efficient Ryzen chip doesn't need nearly as robust a power delivery system as Intel CPUs do, though obviously you'd also be sacrificing things like onboard audio, 2.5Gbit Ethernet, ax WiFi and would probably need to settle for a microATX board (but then the affordable B660 boards are microATX too).
So what I've generally found with pricing here is that like-for-like, the final pricing ends up about the same, with the Ryzen holding a slight performance advantage, trading off against future upgradability and more PCI-E lanes for things like the PCI-E 5.0 slot for the video card (not that any such video cards exist yet), and running multiple PCI-E 4.0 SSDs (whereas you can only run one such SSD on B550).
EDIT: To give an example, the MSI B550M Pro-VDH is a very good lower-midrange board, and it'll happily run any Ryzen CPU around, even the top-of-the-range models. For about $120 here, it comes with basic ac WiFi, basic onboard sound, Gigabit Ethernet, and a USB-C header but no rear-USB-C port.
By contrast, the cheapest decent B660 board is probably the Gigabyte B660M DS3H. For about $190 here it has no WiFi (but an ax version is available for $30 more), mystery-meat onboard sound (they refuse to say what it is), 2.5Gbit Ethernet, a rear USB-C port but no header for the front. Its PCI-E x16 slot is also only certified for version 4.0, unlike on the mid-range B660 boards.
Now buying an cheaper Intel board isn't inherently a terrible thing. However there is an issue in that while it will no doubt run something like an 12400 with no problems, I would not necessarily trust it with an i7 or above, and who knows if the 13th gen CPUs releasing at the end of the year will be even thirstier. Therefore going with a cheap board sort of undermines the upgradability argument of going with Intel in the first place, and so I would tend to recommend spending more on something like an Asus TUF which is around $240. As you can see, to get the full benefits of the Intel platform you do end up spending quite a bit more despite the cheaper (and slower) CPU.