I know that you are using your SOHO for 100% of the traffic so you can use SF 100% of the time.
I am using a Balance 20X.
I have both WAN ports up priority #1. Health checks set to 3 failures with 4 second TTL every 5 seconds. Recovery is 1 good check.
(anything shorter will disconnect the starlink during heavy downloads)
I use the default Outbound policy with Priority to WAN Starlink then WAN LTE.
This allows normal traffic to use Starlink and to failover to LTE when the HTTP health check fails.
For zoom, VPN and other high availablity requirements I use an outbound policy for those domains. with Priority: SFC → Starlink → LTE.
with the SF set for both WAN links pri#1. Wan smoothing Normal and FEC Low.
It isn’t perfect, I get a bit of garbled audio in zoom when starlink goes offline. I will have to try some forced outages with various settings. VMware Horizon has no issues.