I just tried and, as is typical for me, I encountered tech errors.
At the official site (Foreigner apply for e-visa - National portal on Immigration) I completed everything. However, at the payment page, although I received a text with the credit card payment code, no window appeared on screen to enter that code. I later checked my account and it said that the visa hadn’t been paid for yet, and if payment fails you must start from the beginning again.
That first attempt was on the computer, so I decided to do the second attempt on my phone. I couldn’t get to the payment screen, however, because on my phone it would let me check the box that says “The aforementioned is true, blah blah”, nor would it provide the necessary CAPTCHA code, only a broken image link.
I swear this happens so often to me. Anyway, I sent a message to their support and hopefully it’ll get sorted. My trip isn’t until June, but this is exactly why I get on top of these things early.
Is that due to Covid?
I visited Vietnam once around 2007 or 2008 and could swear I got a landing visa upon entry. Don’t remember applying for anything.