Mastodon or other client App of it

I wonder if its safe to use compared to telegram/x/reddit apps where its better to access through the web.

If Telegram foss is enough secure? ( I wouldnt download reddit or x apps on my phone)

define safe… you connect to a server, so it is as safe as a browser.

In what way?

Not doing more than what its supposed to do, being letting me be able to read conversations and interact in them that’s it, since reddit, X apps and similars are just data eaters across the device for profiling and ads