Infixes are not very normal though and I would assume most languages have prefixes and suffixes.
I mean more in the terms of people will get annoyed if you didn't write two words together and instead separated them. And that is becoming pretty common since English is used a lot and you never do it in English, so people started doing it to our language as well (I'm also guilty)
Some aspects of it, such as the fact that the only way to know the en/et of nouns is to already know, indeed suck but I wouldn't say the language as a whole sucks. It's an ok language, English is just a much better one 🤷