How do you run WhatsApp or Signal without a smartphone? Pretty hard.
If your answer is "don't use them", then you're not living in a country where the vast majority of communications are done on WhatsApp or Signal, good for you I guess.
>>palata+(OP)
Access to Signal and Bitwarden are the only two apps I really need daily that keep me on a smartphone. I have tried using a feature phone in the last couple years, but honestly I might as well just not have a phone at that point as almost all my communication is via Signal.