According to this story, independent candidate Sam Hunkler has qualified to be on the November 2022 ballot for Governor of Maine.
Given that fact, and other recent developments, such as the success of the Alabama general election petition for the Libertarian Party, and the Arizona primary ballot access success of Libertarian Marc Victor, it is possible that New York will be the only state in the nation with no opponent on the ballot to all the statewide Democratic and Republican nominees in 2022. It is still too early to tell about Kentucky (where the petition deadline is in August) and North Dakota (where the independent candidate petition deadline is in September).
Also, the above statement doesn’t apply to the states in which parties don’t have nominees and which limit the number of candidates who can appear on the general election ballot to just two (California and Washington) or four (Alaska).