Will snap off fairly often, especially if landing on hard surfaces.
Personally, i run my antennas down the inside edge of the arms, front or back, doesn’t matter, just depends on which end i mounted the receiver. I run a strip of electrical tape over the edge of the arm to keep it from contacting the carbon fiber and another over the top of the wire to hold it in place. The bare ends, i bend down under the motors. The props keep them pointed in the right direction when it is flying.
I have never had to replace an antenna. Have lost a receiver or two from blunt force trauma, but never an antenna. Antenna holders look cool, but i have yet to see a practical design that looks like it would hold up well to multiple crashes. Anything under, on top, in front or behind the quad is going to get ripped off eventually. As such i base my VTX antenna choice on durability and run them straight out the back of the quad.