Sometimes Obtanium gets crazy when there are multiple architecture opctions, usually uninstalling Pokey and reinstalling with Obtanium works
Discussion
It never has installed is the problem. That's all it does after adding the repo link and clicking install.
If you want to try an alternative, you can try nostr:nprofile1qqs83nn04fezvsu89p8xg7axjwye2u67errat3dx2um725fs7qnrqlgzqtdq0. Also I just pushed nostr:nprofile1qqst4dr6ttrw6s28squnwwuj5vsvsly33h7r4nsuzz3f8nf3wjsmk9cprdmhxue69uhkummnw3ezuumpw3ehgunpd35kztnrdakj7qghwaehxw309aex2mrp0yhrq7rrdpshgtnrdakj7qg4waehxw309aex2mrp0yhxgctdw4eju6t09uan9ak9 to https://apt.izzysoft.de/fdroid , in case you want to try an alternative
I use those as well and will try there. I appreciate you.
Obtainium is weird sometimes like you said. It's hard for me to tell what it wants sometimes or where the problem really is.