Ukrainians are some of the bravest people I know.
To the extent that you can, do not use Telegram. Telegram is owned by a single person. This man is a fucking liar.
Telegram infrastructure is linked to the FSB.
https://www.occrp.org/en/investigation/telegram-the-fsb-and-the-man-in-the-middle
Signal is more secure and owned by a nonprofit. The founder of Signal is a professional cryptographer.
https://en.wikipedia.org/wiki/Moxie_Marlinspike
Signal delivers end-to-end encryption by default and collects almost no data.
No, I’m not talking about Telegram, just location sharing as a general feature. And if you already have a chat app you share your secrets on, why wouldn’t you also trust it with your location. Sounds better than introducing yet another company’s app to sniff on you.