Iperf - how to best stress test Wi-Fi

I am trying to diagnose Zoom drops / connection unstable messages when connected from my laptop using 5Ghz on my RT3200 (160Mhz on channel 36, country code: US). What would be a good 'iperf3' client command to execute on my laptop to stress test Wi-Fi for stability to hopefully capture the problem?

start by running an continuous ping from the client to the router, see if there are any spikes in the traffic.

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For UDP, run for 60 sec with 5 sec intervals, aim for 1Gbps, and open 4 streams.
iperf3 -c 10.0.2.5 -f m -t 60 -i 5 -V -u -b 1G -P 4
For TCP, open 4 streams and run for 60 sec with 5 sec intervals
iperf3 -c 10.0.2.5 -f m -t 60 -i 5 -V -P 4

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How about flent? e.g. flent rrul -p all_scaled -l 60 -H flent-fremont.bufferbloat.net -o graph.png

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