My Android smartphone is weird. On purpose. I don't run proprietary apps on my phone. So no Play store, for instance.
I opened a bank account lately and when I walked in and told them I wanted to open a bank account they were like "ok, first you install the app." And rather than saying "fuck no I don't want you assholes snooping on my phone" I said "my phone is a little weird and it's not going to be straightforward to get your app installed on my phone."
And they kindof pressured me to prove it to them. Show them all my apps to prove I didn't have the play store. Scan their QR code and download it manually (which I think only didn't work because I (purposefully) opened the download with the wrong app.)
Next time I'm in a situation like that, Imma be like "I'll make this real simple for you. I'm not installing your app. Now do you still want my business or shall I take my business elsewhere?"