I haven't see the full list, so I'm sure every NFL city/stadium was listed, but what about Ann Arbor, Columbus and Austin?
The entire list of stadiums
USA
Every NFL stadium including the new Las Vegas stadium, except Buffalo
Legion Field - Birmingham (71,594)
Cotton Bowl - Dallas (92,100)
Rose Bowl - Pasadena (90,888)
Camping World Stadium - Orlando (65,000)
Rice-Eccles Stadium - Salt Lake City (45,807)
Alamodome - San Antonio (72,000)
Qualcomm Stadium - San Diego (71,500)
Canada
McMahon Stadium - Calgary (35,650)
Commonwealth Stadium - Edmonton (56,302)
Stade Olympique - Montreal (61,004)
Stade Saputo - Montreal (20,801)
TD Place Stadium - Ottawa (24,000)
Mosaic Stadium - Regina (30,048)
Rogers Centre - Toronto (53,506)
BMO Field - Toronto (30,000)
BC Place - Vancouver (54,500)
Mexico
Estadio Chivas - Guadalajara (45,364)
Estadio Azteca - Mexico City (87,000)
Estadio Rayados - Monterrey (52,237)
FIFA requires the opening and closing games to have a capacity of at least 80,000. The only stadiums that meet that requirement are Estadio Azteca, Cotton Bowl, AT&T Stadium, Lambeau Field, EverBank Field, LA Memorial Coliseum, City of Champions Stadium (new Los Angeles Stadium), Rose Bowl, MetLife Stadium and FedEx Field.
I think it's safe to say that Lambeau Field, EverBank Field, Cotton Bowl, LA Memorial Coliseum and the Rose Bowl wouldn't even be considered either too small population wise or too old with a lack of amenities. Doubt Azteca would get to host the Final after most of the games are in the US.
I'm pretty sure Washington has been pushing for a FedEx Field replacement so it might not even be in use in 2026. New York or Los Angeles seem like good bets with AT&T Stadium also in the running.