I've done this ever since banking/financial apps became the norm. Something about carrying a small easily lost/stolen device containing access to every penny I own as well as possible credit/loans worth several years salary didn't seem like good finsec. If it can touch money, its on my sim-less stock old android that lives in a Faraday bag for 99% of the year.

Works, but if we think about it, it's just a win for big tech, because we're using their oppressive system and even buying an additional phone

was looking at phone options recently and, honestly, fairphone has become the only choice as a daily driver. I am now absolutely fine with the limited fairphone specs as a trade-off for a device I control as my own.

will keep older phones for any corp BS that I am forced to deal with. hopefully we can legislatively minimize the interactions.