How to wirelessly control Fibaro switches without a control unit?

Hello, I have one question for my colleagues after Fibaro training or with experience. To begin with, I must write that I have an installation made on the principle of transmitters (powered 230) and receivers (powered 230) . There is no wiring between them. While in Extafree there were four-channel extension transmitters (such a module supported four single switches), in Fibaro I can't find any replacement. I will replace the receivers with switches, but how to switch them on wirelessly from a switch, bypassing the control panel?

Unfortunately, these are not separate circuits for each device (switch, receiver) from a single point or switchgear. It's a quick upgrade, i.e. power 230 is always taken from the nearest circuit. I think it's time to make a wired installation and only then to install Fibaro.

Added after 2 [minutes]:

Also, it doesn't necessarily have to be Fibaro, so that it just gets along with my google assistant .

One more quick question: Can the realy switch control the wall plug bypassing the control panel ? the so-called association Because I read and read these manuals and they do not write anything about this particular topic .

If so, has anyone come across any 868 Mhz receivers that are supported by ewelink or something similar that works with google home?