It's been a while since I rented from Avis at the airport (maybe 1+ year) but the shuttle was just fine, you had to phone them from where their office in the parking lot used to be and they will come and pick you up.
I don't recall the Hertz office ever being a zoo, then again I think the last time I rented from them was pre-covid.
I much prefer taking a taxi to where I need and rent a car from their offices in Tel Aviv or any other city I'm in.