With the number of cheap (mostly chinese) BEV’s available now and coming in the pipeline we’re already seeing some very cost competitive propositions.
I think that point is very close, maybe mid-next year if all goes well.
Places lake motorway service stations where people will supercharge will do just fine, but your local gas station will have to compete will home chargers, parking lot chargers, etc. Not a lot of people will choose to shop at an expensive gas station shop if they don’t have to.
Selling gas is hugely profitable, labor cost for dispensing gas is zero. It's why legacy c-store operators like 7-11 and Wawa now include gas at almost all new locations they build.
2037-38 seems like a reasonable estimate for ICE vehicle market becoming smaller than EV, and all the accompanying things that go with it, like disappearing gas stations and more and more restrictions on ICE vehicles (e.g. city centers, commercial sales only, etc.)
If the diesel transition takes time, I think the gas pumps will also stay along the major truck routes, but one might feel like a NG fuel user looking for an airport station in regions with a lot of urban density.
(Even without these pressures, an EV is already 1/3 the price to operate so that pushes ICEs toward infrequent users which accelerates the downward spiral of gas stations and gas consumers.)