I agree that in every world cup the hosts have a slight advantage, but personally I think Qatar is probably the weakest host ever in a world cup in terms of team quality and I don't expect them to make it to the knockout stages of the world cup.
The Netherlands is one of the favorites of this world championship, and Senegal, if I remember correctly, is the runner-up of Africa.
Senegal also have a good chance of reaching the knockout stages of the World Cup and perhaps equaling their greatest World Cup success, the quarter-finals at the 2002 World Cup.
If I am not mistaken in the history of the World Cup, there have been at most a couple of exceptions when the hosts of the tournament did not advance from the group to the next round of the competition. Qatar has every chance to add to the list of these exceptions, although given their strong corrupt "magic" with which they generally got the right to host the tournament, you can expect some surprises, haha.
Actually, I don't expect any surprises in this regard. Qatar will probably leave the tournament without reaching the next round. They have a mediocre squad and will only qualify for the tournament because they are the host country. The Netherlands will likely lead in Qatar's group, with Ecuador and Senegal vying for second place.