No. Oppo A71s does not have the gyro sensor.
Oppo A71s has ARM Mali T860 MP2 GPU. This is dual core GPU and the frequency is capped at 520 MHz.
Yes, Oppo A71s has the FM radio.
Oppo A71s has 5.2 Inch HD IPS with 1280 x 720 resolution. The display offers 282 PPI ratio. The display has 2.5D curved glass but unfortunately, it does not have any kind of display protection.