You need to use TRANQ DARTS after the griffin nerf.

On mobile you cannot tame these unless you are a higher level than 85, i knocked one out and said it didn’t respect me and it wouldn’t let me tame it :(

You CAN tame them with a crossbow.
Wait 5-7 seconds between shots and there is no way you will kill it. Torpor raises over time, arrows/darts are not instant.
You do not "have to have" tanq darts.

Highlyyyyyy recommend not using tranq arows. Darts are more expensive but defenitly risk free.