Yandex Games. Please note that Unity WebGL is not currently supported on mobiles. What to do with it?

Question

Yandex

I am creating a Unity game under WebGL for Yandex Games.
Not supported by WebJiEl, the inscription appears on smartphones.
Games with such an inscription are not allowed to be published.
This is from a letter from Yandex Games support:
"At the start of the game on mobile platforms, a notification appears that WebGL is not supported, games with such a notification are not published on mobile even if there are no other comments."

There are options to "hide" the inscription with the window, but it seems to me that this is something "illegal" or something ...

I hope there are developers from Yandex Games who have encountered this and know how to solve it ...