Is it acceptable to activate microphone by default in an app with a voice chat feature?

1. Why does Fortnite say your voice chat is restricted platform permissions?
2. What are the requirements to use Roblox voice chat?
3. What does disable voice chat do?

Why does Fortnite say your voice chat is restricted platform permissions?

You might also be in Xbox or PlayStation Party Chat, both of which will keep Fortnite's voice chat from working. If you want to use Fortnite's voice chat, you must leave Xbox or PlayStation Party Chat to use Fortnite voice chat, even if nobody else is there.

What are the requirements to use Roblox voice chat?

Eligible, age-verified, age 13+ users can opt-in to use this feature by visiting their Settings page. They will then be able to use chat with spatial voice in any Roblox experience that supports it.

What does disable voice chat do?

If you disable voice chat entirely, you won't be able to hear any audio communication from your teammates, and vice versa. If you're playing with friends, maybe chat with them in a Discord call or Xbox/PlayStation party.