I Have Just put all my gear on 2 separated power strips.
One for my computer, audio interface, monitors, hubs.
One for my synths including elektron.
I switch everything on and off with the power strip’s switches.
I asked the technical support team for every piece of my gear in order to be sure that it is safe. The answer was “yes”, by design most of the power buttons on our devices are actually brutal on/off switch.
For me there are 2 things that need reflection.
1/ your devices probably need to “request” a lot of intensity in order to power up. Trying to power them up all at the same time may cause a “peak” of activity in your electrical system.
you have to check if your power strip can handle it, as well as all your electrical supplying system (wires, circuit breaker…)
2/The other thing that may be interesting is to have a tension/voltage stabilizer, but this is not related to using a power strip or not.
If the voltage provided at your power plugs is momentary higher than expected, you could burn your ac/dc adapters and maybe damage your devices.
Here in Paris voltage is known to be quite stable so I am hesitating on that matter…
This is my personal point of view, I am no electrical specialist!
Cheers