The znver1 version is only for processors 2017 and newer (basically means Ryzen), otherwise you would use the normal x86_64 iso like you ended up doing.
I know your model processor was released in 2019, but it is a recycled architecture from like 2011-2015
I think OM management is on the verge of explaining the limits of shameless plugs, but since you asked I updated my bio. Just click on my username and then “expand”.
I’m using Linux since 1999 - started with SUSE CD set, spent >5yrs with Gentoo and then Arch. Tried Fedora for a short period of time, similar with openSUSE Tumbleweed, but most of the time in between, used Debian/Sid with short episodes with Siduction. Few months ago, I thought I’d settle on LMDE, but now would like to try OM…Lunduke’s video sparked interest in OM - not just because of non-work policy, but due to technical merit as well!
Looking forward to install it on both my my (laptop) machine as well as on the old Thinklpad netbook, but have some issues with the latter…