But yeah, only was of mobo manufactures making money is by selling new ones, new bios cost them money...
They only get money, if you buy a new motherboard from them, because you trust them that you'll get good support from them. Maybe you stay loyal to them...
If they withdraw support, you'll start thinking if they are trustworthy and not worth spending money at them on you next system...
By the way, i wonder how long AMD know this, know is the wrong word, when they decided to cut support / upgrade path for older chipsets/motherboards.
Last year i waited for Zen2, but it was expensive for me at that time, so i settled for a 2600, AMD released x570 PCIe 4.0 chipset, but delayed B550 chipset, so i bought an MSI B450 Tomahawk, because there were no B550.. When bought this board, they probably had a good laugh too: next year or the year after that, if you'll want the new Zen3, you'll have to upgrade to a new MB anyway
Even before Zen2 release AMD and MB manufactures know about the small bios size issues, they had to for months, they designed them, yet said nothing, just continued to sell those. Don't tell me they couldn't anticipate how much free bios space needed for the new cpus.
I'm not saying my current system is bad, just this leaves a bad taste in my mouth.

But will see if MSI release some kind of Zen3 support bios.