Here you go. Plenty of threads here if you search for “decoupled”.
Also, note that you can use any regular smart switch with smart bulbs if you wire them up to the permanent live that feeds the switch. Basically you just need to join Live in and Live out wires and hook them up to the L terminal on the smart switch.
Besides the obvious “danger of electrocution” warning, I would still suggest to call an electrician to have a look at your wiring before buying any switches.
Most smart switches will require a Neutral wire to operate, and the no-Neutral ones are mainly designed to be wired up in the traditional manner. Using decoupled mode or permanent Live wiring may not provide enough leaked current for them to work properly.