The AM5 platform is a bit of a mess but this is mainly because the bios are not where they should be when we are over 6 months from release. The main fault is totally at the feet of Asus for pumping 1.4v through the cpu when the other manufacturers were keeping it more within spec at 1.2-1.25. There was also a massive flaw with the over current protection , it just did not work and that is why the cpus were melting. I did not like Asus mobos before this issue and I cannot understand how they maintain their grip over their cult when they release such terrible products ....and by terrible products I mean all of their AM5 mobos are suspect at this point in time.
It was not inherently an EXPO issue because there was a Gigabyte mobo that killed the cpu when EXPO was not enabled.
It is totally worthwhile getting 6000mhz cl30 ram for a 7000 series chip but it is a lottery whether the cpu you get will run at the speeds you want even if the ram is on the mobos qvl list.