And then there were those discriminate situations where something that is normal in "our" world was forbidden in Qatar, but I won't go into that.
Visa issues during 2026 edition will be much worse than what they had in 2022. Qatar at least issues tourist visa without much delay, unless you are from the pariah states such as North Korea or Cuba. Getting a tourist visa for the United States is next to impossible for most of those who are residing in the third world nations. I am not sure whether they will make some exemptions for the 2026 World Cup, but we are going to witness a lot of ugly scenes at the airport.
Perhaps football fans need to wait until 2030, if they don't want to waste their hard earned money. But we don't know about hosts for the 2030 edition yet. Right now there are at least a dozen bids, including those from Morocco, combined Uruguay–Argentina–Chile–Paraguay, combined Spain–Portugal–Ukraine, and the joint bid from United Kingdom-Ireland. Voting will be held sometime in 2024.
If this tournament is organized for football, everything should be done for football fans. What makes football football is the enthusiastic fans. For this reason, it is necessary to provide convenience in visa. If the necessary convenience is not provided, big problems will arise. That is why the United States should start working on the issue already.