Can you help me find a lightweight and privacy oriented Telegram client?

I need to connect to a Telegram server and discovered there are some custom clients available.

I was deciding to go to Telegram-FOSS, which can be downloaded from fdroid; then I found this issue [https://github.com/Telegram-FOSS-Team/Telegram-FOSS/issues/503](https://github.com/Telegram-FOSS-Team/Telegram-FOSS/issues/503) (Telegram-FOSS connects to various big companies and firebase), which remains open more than a year later.

With "privacy oriented" I mean not connecting to such services, no GPS, no access to contacts, calls, SMS, emails, or other "strange" permissions. End to end Encryption would be …

client privacy telegram