@rio I wonder if you'll be able to get OsafuKeitai running on it. I wish I changed my device model before the trip last year, sadly I was too lazy and had device with locked bootloader/no root on me so I couldn't test.
(International models of Google Pixel can use OsafuKeitai just fine, there's a check in the app if device was sold on Japanese market. I literally just ran "sed" on devinfo partition which changes model ID to one corresponding to a Japanese model and it works. Downside is that I have global shutter sound in Android but I don't really care about it since it's not obnoxious