Sean πŸ‡ΉπŸ‡Ό says to YSITD
εƒζ˜― Telegram ζŠ±ζ€¨δΈ­εœ‹ζ‰‹ζ©ŸπŸŒš Huawei and Xiaomi devices have evil task killer services that interfere with the Telegram notification service. For our notifications to work, you need to add Telegram to allowed apps in those devices' security settings. https://telegram.org/faq#notification-problems