Whatever does it for you. I'd rather relax and not worry about not seeing a pothole in time. Though commuting on a road bike is more fun, I seldom do it - it is less convenient for me. But that's me. If you like it and have no problems with it - cool!

I'd always recommend something with fenders, rack and fatter tyres as a commuting bike. A starting platform. Extremes like road race bike, or a full suspension MTB are extremes that people can choose if they like them, but I'm not sure it is more convenient.



To answer the OP: yes, any bike will do, but depending on the length of the commute and the weather, road conditions, some will do a little, or a lot more better.

While my commute was under 5 km, I could do with really anything. Now it's 11 km's and it is significantly different. If I carry a backpac, my back gets sweaty, so the extra 6 kms made a rack (for backpack and/or panniers) a must. Since my working hours are often at night and roads are bad, I also must have really good healights, or strong wheels with fat tyres to handle potholes not seen in time.

So it all depends. You can start with any old bike and see what you like and what you don't like.