Could be that you hit bugs and limits
the following are likely issues that should be investigated
1.You are mentioning Wifi issues and Linksys WRT 1900.
Linksys WRT Wifi driver unfortunately is super bad quality, and I am not sure, if it is well behaved at all, when creating multiple logical Wifis. Though Luci allows to create multiple logical Wifis, some wifi drivers only properly run 1 or 2 logical Wifis on the same radio.
2.Also note that Linksys WRT and v22.02 has a severe bug with VLANs. Maybe that has some effect here as well
3.And wasn't the Linksys WRT platform changed to DSA on v22? (No more "switch" menu). I see lots of VLAN definitions in you config. On DSA-enabled devices, you would need to use VLAN IDs only, when talking to another VLAN-enabled HW device, but no longer to create local switch partitions.
- I would retry with v23.05
- and retry with minimal zones and minimal Wifis and then gradually add more zone config and retest in each step.
- do you need VLANs to talk to other devices?