Well, they are working on a Google Play Integrity alternative that should allow banking apps on degoogled ROMs. https://korben.info/un-consortium-europeen-lance-une-alternative-open-source-a-google-play-integrity.html
for those wo don't understand French: https://news.slashdot.org/story/26/03/09/2252215/european-consortium-wants-open-source-alternative-to-google-play-integrity
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