Change source from wifi to LAN without messing up proxmox subneting and tailscale

Dear GLI folks,
Please help me determine if I should make this change. I have moved my beryl 1300 and plugged it into our isp's main router in hopes of getting more bandwidth for my setup, described below. Is there a way to simply change the source of the beryl's internet from wifi, repeated, to LAN without messing up everything? Here is what I have set up that I don't want broken:
an internet connection
2.5 g and 5g wireless networks
a LAN subnet going to a two linux pc's running proxmox homer server. One is an exit node configured through Tailscale. There is too much to be messed up so if I can't simply boost the bandwidth with the ethernet connection to the beryl I will just skip it. If you can help, great. If not,that's ok too.
Bonus I discovered: with an exit node setup via talescale I can access my router admin panel from other networks. This is seeming better than the so called remote access configurations I have discovered.

Hi,

Change from Repeater to LAN, will mean too much configuration maybe want to change.
As you know, the Repeater is WWAN (Wireless WAN), it is different with LAN. Let's say, the Network Mode is different, repeater is Router mode, and when you change to LAN, you need to change to Access Point mode.

But I think the 2.5G port (but need to change to use as LAN) and 5G Wi-Fi SSID/Key can be saved, other devices probably need to check by yourself, as I have not very understood your network topology, all of devices will go to your ISP main router LAN instead of 1300 LAN, after you change from repeater to LAN.

Ok that is what I figured. It was hard to set up so best not to make changes. Cheers, thanks