In the weekend of the 20th of March I got the cloudflare verification pretty often while in KL running on a global e-sim was fine, using the WiFi at Park Hyatt got a verification ever so often.
Since Thursday 2nd I have been getting a cloudflare verification on almost every single navigational step in Japan using DoCoMo mobile data on Chrome, but also trying from my laptop on the corporate network in the office in Tokyo. Or via the corp vpn from the JAL lounge in Osaka.