No worries. Going for a cheap board doesn't necessarily mean it's bad, you generally have to be more cautious, and it may limit your upgrade potential, though seeing as AMD are mre efficient and draw less power than intel, it hasn't been such an issue with them. But cheaper boards you generally have much weaker vrm's, poor vrm heatsink on in the really cheap one, no heatsink, which generate more heat and in the really bad one can throttle the cpu. you also loose connectivity(maybe only have a few usb on the back etc), and also use weaker sound codec etc.as in the ones above I put, the most expensive has pcie5, a gen 5 nvme also, the bottom neither, so youre future upgradeability(though pcie4/gen4 hardly slumming it) is capped..(a bit like b450 boards only having pcie3..hasn't made a huge difference with gpu's(though no idea with something like a 4090) but it does take away a few fps)Example in the intel alderlake line up
For budget boards, pretty much only one I recommend in the MSI Pro B660m-A board(wifi or non wifi). It's vrm's are capable of running a 12900k. Compared that to a Gigabyte D33H AX..both boards testes with a i5 12600 in cenebench the msi scored 13692, the gigabyte 5746..now with tweaking etc seen that massively improve, but the board was really intemded for i312100 cpu and that's about it..dropping in a far more powerful cpu (13900k) a few years down the line isn't really an option as you wont get the performance from the cpu.
In amd b550, i looked at hardware unboxed..putting a 3950x in the boards and running blender the best boards reached max temp of 46 degrees(Gigabyte Aorus Master..expensive), then my e-gaming was 58 degrees, but a msi tomahawk, £139 at the time 62 degree, and gaming edge 59 degrees(basically a tomahawk with wifi and improved vrm heatsinks)..bottom of stack gigabyte(4 of them)b550 gaming x, aorus pro,ds3h and b550m(m version, normal atx version was fine) aorus elite, which all had temps from 112 to 118 degrees and thermally throttled the cpu..the test are extreme, but they do show differences between the boards, so when I looked for my build, i looked at the top 1/3 of boards, checked the prices and features and went from there
I also look at the cost of complete build I guess..if someone has a budget of £900, I'm not going to recommend a £200-£300 mobo, but on flip side, not going to recommend a £150 board on a £4.5k build either..if someone spending that much, they have high expectations, nd spending an extra 3100 or so is a small % change of complete build...so basically try to keep it balanced system..that goes for cpu as well.
Downside is even the top asus b650e I recommended is still a higher midrange board now..start looking at the hero board, and it's £650 (and also very popular)and think the crosshair £950, msi meg £850 and aorus extreme £780...don't think i'll ever recommend those
The latter being in stock, the former being a pre-order.