Hi, I just wanted to jump into this discussion because I ran into a similar (though slightly different) issue (seems like a recurring one mentioned in earlier posts) when installing qiime2-amplicon-2026.1 onto M4 MacBook Pro.
An error occurred while installing package 'bioconda::bioconductor-genomeinfodbdata-1.2.11-r43hdfd78af_1'. Rolling back transaction: done LinkError: post-link script failed for package bioconda::bioconductor-genomeinfodbdata-1.2.11-r43hdfd78af_1`
Following the steps in this thread resolved it for me.
Truly, a huge thank-you to @lizgehret for being so generous with your time and going into the details so thoroughly - It’s genuinely so nice to see how much care the moderators here put into helping users out everyday. I really appreciate it! 
(and I’m sure a lot of silent readers do too!)
Quick follow-up question: I fixed the problem by downgrading conda from 26.1.0 to 25.11.1. Before that, (I didn’t figure out the exact issue within my conda but) I tried to make conda 26.1.0 work by resetting my global channel list and setting channel priority to flexible, and that didn’t help.
For future installs of the latest QIIME 2, is it still okay to run conda update conda before installing, or should I avoid updating conda?