iOS telegram support issue

By some reason telegram does not recognize Avast as a browser and prevent open link in Avast.
In screenshot there are reflected all browsers I have on my iphone, but Avast is missing.
I also tried to configure Avast as my default browser in the Telegram on my iphone (ios 14) and this approach appeared unsuccessful as well.
It’s displaying all installed browsers but not Avast.
Could you please assist with that?

https://i.ibb.co/wrJ4npx/tg-issue1-en.jpg

Have you checked the settings in both apps? Probably one is blocking another?
I had a similar issue with WeChat, I checked the settings and it turned out that my WeChat app blocked the browser.