I have watched Qatar play Iran many times since I started to get into football at age 6, and nearly everytime we play them in Doha the stadium is 75% empty. Even when their top teams (Al-Sadd, Al-Gharafa) in AFC Champions League play at home, the stadium looks completely flat and empty. Not to mention a large % of Qatari population aren't even Qataris. It's surely going to be a weird atmosphere. Their team is piss poor as well, and in WCQ finished bottom of a group with Iran, Korea, Syria, Uzbekistan and China.
I mean, in Russia, on the days your team didn't have a game, you'd go see Hermitage, take a boat tour on Fontanka, relax in Gorky Park, or day-drink and dance on Nikolskaya Street. What are fans supposed to do in Qatar on a free day? Guess doing day trips to more interesting countries of the region could be an option, we'll find out.
I was in Reykjavik in January and have a good friend there who went to Doha a couple of years ago for the Handball Championship. Asked about his experience and to put it kindly he didn't have the best words and experience. "You see buses that are loaded with over 200% of their capacity, it's like a sardine pack."