I would encourage you to read about the Edward Snowden guy and the PRISM program on wikipedia and most recent attempts of EU to ban the encryption.

Also, here is what Pavel Durov mentioned recently in interview to Tucker Carlson

> In the US you have a process that allows the government to actually force any engineer in any tech company to implement a backdoor and not tell anyone about it with using this process called the gag order.

It doesn't matter what anyone claims on the landing page. Assume if it's stored somewhere, it'll get leaked eventually and the transitioning/hosting government already has an access and decryption keys.

You are right. I still think it’s better if only our guys have this information than both, our guys and their guys. At least Western companies have the possibility to get regulated if political winds change.