I use an esim.me card in my phone and once you program the card with the esim.me app, it shows up as a normal physical sim card on the phone with whatever plan the esim was for. I believe you can even move it to another device and it will still show up with the same plan, though I haven't tried that.

The only issue I've had with it is that some esim provider apps refuse to work on a phone that doesn't have esim capabilities, and since the phone sees the card as a normal sim card, the apps don't work. I assume that will be an issue for any of these cards. Not a huge issue though, most esim apps/websites will still let you get the QR code or download the profile even if your phone doesn't natively support esim, and you just enter that into the esim.me app to program the card.