After several weeks of group stage and playoffs, here are all qualified and potential qualified Nations for the FIFA 2022 World Cup to be held in Qatar.

In Europe, 55 Nations battled out through the group stage of which the first ten placed Nations qualified automatically leaving ten-second placed teams to battle out for the additional spot through playoffs.
Likewise in Africa, ten Nations also qualified through the group stage and were drawn against each other in the playoffs of which five of them overpowered their opponents as they head to Qatar.
In South America known as CONMEBOL, four Nations successfully seal through the group stage leaving one to decide fate in playoffs.
For North and Central America, five Nations are the frontrunners but one will battle out for an additional spot through playoffs.
In Asia Continent, four Nations will be representing whilst two Nations head into playoffs.

Europe
First places teams: Serbia, Spain, Switzerland, France, Belgium, Denmark, Netherlands, Croatia, England, and Germany.
Playoff qualified teams: Poland, Portugal, and Wales.
Asia
Qualified teams: Saudi Arabia, Japan, Iran, and South Korea.
Qualification playoffs: United Arab Emirates and Australia will decide their fate in the playoffs.
South America (CONMEBOL)
Qualified teams: Brazil, Argentina, Uruguay, and Ecuador.
Qualification Playoff: Peru
North & Central America (CONCACAF)
Qualified Teams: Canada, USA, and Mexico.
Qualification playoffs: Costa Rica

Africa
Group stage qualified teams: DR Congo, Morocco, Ghana, Nigeria, Algeria, Cameroon, Senegal, Egypt, Tunisia, and Mali.
Playoffs qualified teams: Ghana, Cameroon, Tunisia, Senegal, and Morocco.
Oceania
In this category, Solomon Islands and New Zealand are will battle out for the only spot which will be decided today (30th March 2022).
Summary
Qualified Nations:
Serbia, Spain, Switzerland, France, Belgium, Denmark, Netherlands, Croatia, England, Germany, Portugal, Poland, Wales, Saudi Arabia, Iran, Japan, South Korea, Ghana, Cameroon, Senegal, Morocco, Tunisia, Brazil, Argentina, Ecuador, Uruguay, Canada, USA, Mexico, (Solomon Islands/ New Zealand)
Qualification Playoffs:
Costa Rica, Peru, United Arab Emirates, and Australia.
Note: Two Nations stand a chance to qualify in this category.
Which Nation are you rooting for?.