At least in the UK, I've never had a problem with charging stations of payment yet - there are lots of stations (some now are "plug and charge" so you just plug and the payment is dealt with automatically, but those are currently rare but the rest pretty much all take contactless payments) and many now that are 350KW (which is way more than either my ID3 or the Tesla 3 can handle). Pretty much everyone now has settled on CCS as the "usb for cars" in Europe so that are no cable/adaptor issues to worry about.
The software on the ID.3 is ok. If you sit there for 20 minutes and fiddle with it yes it is not as smooth as using a modern smart-phone in terms of responsiveness. But really, 99% of the time all I am doing with it is changing the radio station or aircon for which it is totally fine. I've not used a tesla so cannot do a direct comparison.