Plugshare is a good app for finding working chargers because it’s crowdsourced and not brand specific. It can filter by your specific car and filter out dealers, Tesla and Rivian exclusive locations (they’re opening up to other brands but not all at once), private businesses, etc. You can check recent reports of every station.
Even with that, though, there is a lot of variance in where chargers are. On our last couple of road trips, we charged at a Pilot full-service truck stop gas station (good), an abandoned restaurant next to some woods (creepy and partially broken), a mall with both Tesla and off-brand chargers (fine), a grocery store (fine but really crowded), a casino (way out in the corner of the big lot, and slow and occupied), a parking lot with no amenities (but at least it charged), another parking lot with nothing (but walking distance to a brewpub, thankfully), a hotel (hard to find and all occupied), a parking garage (whose chargers, we found out too late, were valet only).
None of the experiences were great. Some were tolerable. We didn’t WANT to go to any of those places. Every road trip becomes planned around the needs of the vehicle instead of where and when we would like to stop. Especially as a vegetarian & vegan, there’s nothing for us to eat at most rest stops and restaurants and malls, and the places we like to eat at don’t have chargers. Many of the charging locations don’t even have bathrooms or vending machines. So 99% of the time we have to stop just to charge the car, and pray that there’s some business within walking distance to patronize. There isn’t always. Many of the chargers were in poor condition and broken. Some of the working ones had such massive cables and chargers my partner (who’s a reasonably fit woman in her 30s) couldn’t comfortably lift it and plug it in. It took all my physical strength as a grown ass man to do so, uncomfortably, in freezing weather in the dark. I can’t imagine an old granny trying to do that.
You never have to worry about any of that with an ICE road trip.
This is largely regional, of course. In denser, richer, more liberal areas, it’s almost never an issue. The SF to LA corridor is probably the best case scenario, and it goes downhill from there the more into the boonies you get. In Oregon it’s not terrible and not great, but it’s definitely something you not only have to plan for but plan AROUND. You can’t just go where you want anymore, you have to go the specific routes needed by the car.
This wasn’t a dealbreaker for us, but it certainly might be for someone else. It’s not something anyone should be surprised by, but unfortunately the government and dealers don’t really bother to inform you upfront. Very much a buyer beware situation.