Welcome!
Not sure if this is helpful or not, I am on zigbee2mqtt not zha. I echo what others say and recommend zigbee2mqtt over zha, I ran both for several years and the function, support, community and devices add/fix by devs is much better.
In the ‘way back’ machine, I too ran SmartThings hub, their zigbee work was outstanding at the time. Zigbee2MQTT has now become the leader in ‘open’ zigbee work.
I have one of these no-neutral Aqara switched working well with zigbee2mqtt, link below. As I say not 100% in line with what I think your config will be, I have one of the buttons controlling a pair of LED bulbs directly and the second switch in ‘decoupled’ mode controlling three zigbee bulbs, 2 Cree, 1 Singled. Configuring the two switches was easy in zigbee2mqtt. The switch is connect to routers, not directly to coordinator.
While I do not have any switches in production that require ‘bypass’ capacitors, this can be a need for some no neutral devices.
FYI, if you are planning a larger number of devices in your setup, I highly recommend the following for testing:
As I said, move to zigbee2mqtt outside of Home Assistant using docker containers
Add a 2nd test zigbee2mqtt network using a second dongle and docker container to test new devices ‘off’ your main zigbee network.
Get a Cliff Quicktest
A box of Wago connectors
https://www.amazon.com/Lever-Nuts-Connectors-Assortment-221-2411-Splicing/dp/B0BTDSS6HQ
A ‘Wattsup’ type test meter
https://www.amazon.com/dp/B08GSPLZBN/
Grounded Single Outlet Power Adapter with Illuminated On/Off Rocker Switch
https://www.amazon.com/dp/B0CLH7QR8S/?th=1
Simple lamp socket that you can cut and wire in to your test circuits with Wagos
https://www.amazon.com/DiCUNO-Extension-Hanging-Lantern-Polarized/dp/B0986K4RC4/?th=1
One ‘old school’ 60 watt incandescent bulb for calibrating various power monitoring zigbee power metering plugs.
One ‘new school’ low wattage good quality ‘dumb’ LED bulb to check need for bypass caps and check for flickering, dimming.
Note: make sure to not leave your test socket and bulb laying on your bench for long period of ‘on’ testing. It does get hot, even LED bulbs, from experience 
Good hunting!