Gate opener from FAAC

Hello all, hopefully someone can help me.

I have an FAAC gate (opener) that operates at the frequency 868.35 MHz. Now I have tried using the flipper to use/save this frequency, however this does not work.

Am I maybe doing something wrong. Is it smart to use an IR brutoforce? I am new to the Flipper Zero, so have no idea how and what yet myself.

If we are talking about Sub-GHz, anything IR-related is not going to help.
FAAC seems to be unsupported by design: HELP FAAC Gates

Try with non-official fw ?