Assuming US, Open Banking is on the horizon. Will likely still take a few years before it’s fully implemented, but hopefully soon!

Maybe consider collapsible dropdowns or similar for the extra information

Just an aside, but it may help others who have this issue to share the solution that worked for you

Maybe make use of the “/s”?

Not commenting on the content, but you should not dismiss an argument because it contains a slippery slope. A slippery slope fallacy is an informal fallacy, meaning it’s existence does not inherently mean an argument is flawed.