Best way to get around this is to use a Wi-Fi extender. Then plug your Ethernet wire into that.
Something like this. Doesn’t have to be fast, just reliable.
I wanted to post an update. I ordered a TP Link RE315 extender for $38. I set it up for intermediate range and stuck it in my garage and chose to reuse the same SSID as my Orbi. Everything works great - My Nest and my garage Kasa have latched onto that extender and the rest continue to use Orbi. I noticed Nest Cam attached to 2.4G (even though their support page says 2.4G and 5G in US/Mexico) but I'm good with that. What I realized is if I turn off 5G, TPlink says its too far from the router, so I enabled both bands (wonder why though, 2.4 has wider range than 5). I disabled DHCP in my extender.
My main purpose is met: My Nest Cam connects perfectly, and always streams when I need it to. To avoid some internal devices latching onto the TPLink (like some of my wiz lights that are equidistant from both Orbi and RE315), I configured a whitelist in the RE315 to only allow my nest cam and a garage wifi switch.
I will admit I sometimes see the nest on this extender and sometimes not. When I searched around I found posts in tplink forums that say when we use the same SSID the connected client list is not reliable. If m not sure if that is accurate but functionally I no longer have problems connecting to the cam.
A huge shout out to Dong Knows Tech who validated my assumptions. For folks looking to do this:
a) Any repeater should work - get one that can extend your SSID if you need
b) Repeaters virtualize mac addresses, so this may fail if you use IP address reservation at the router