Check Out Here: https://www.techdriod.com/telegram-or-signal-whats-best-whatsapp-alternative/
But WhatsApp is the leading social messaging app & getting adapted to any new alternative is not that easy. It takes a long to adapt & getting your entire family/friends/office circle on the same platform is tedious & might be impossible too.
What happens if we reject new terms?
The users who will not agree to the newest terms & conditions of WhatsApp will be unable to send or receive messages until they do so. The deadline given by WhatsApp is 15 May,2021 which means if you don’t accept their policy you won’t be allowed to use the app. Such users’ account will be listed as “inactive” & will get deleted after 120 days. If you install the app without agreeing then calls & notifications might work for few weeks & then inactivated.