TTL Change for Flint 2

I been doing a bit of reading and a bit of testing. I know the firmware has been having tons of issues and back and forth on openwrt versions and such.

I tried the usual iptable mangle lines and had no luck. Sounds like this router uses nftables?

I tried SSH and using these lines:
mkdir -p /usr/share/nftables.d/chain-pre/mangle_postrouting/
echo “ip ttl set 65” > /usr/share/nftables.d/chain-pre/mangle_postrouting/01-set-ttl.nft
fw4 reload

The router says fw4 not found. Ping the google and get 111.

Im usb tethering to a S23 on tmobile.

Can anyone help with this? You would think there would be a TTL spot in the GUIs at this point since alot of people mess with it

I used fw3 reload which it did accept but ttl still wont change