Mask wearing rules are here to stay for the time being. You are supposed to keep a mask on except your hotel rooms.
(The picture was taken at Kaminarimon Gate at Asakusa, Tokyo on July 10, 2022).
For details, please check the guidelines of the Japan Tourism Agency.
Resumption of Accepting Overseas Tourists from June 10 2022 | International Tourism | About Our Policies | Japan Tourism Agency (mlit.go.jp)