I'm in a 40 year old apartment with a lot of switches that now affect nothing, because they broke and no one fixed the wires ('cause landlords are cheap). I wouldn't want to change this for a bunch of wireless switches but it's easy to imagine landlords of the future wanting nothing but glue on fixtures - routing wires costs significant money.
But the functionality of the switch can be emulated with with a software defined radio attached to a 1GHz Raspberry Pi running Linux. It works great, but an out of date kernel enables a virus that spreads from light-switch to light switch and performs a light show on the evening of 4th of July in any calendar year.
All our lights in our rented apartment are ikea TRÅDFRI smart lights, we have the ikea 5 button remote in a lot of the rooms and google home's spread around.
The whole system works with zigbee -> mqtt and home assistant and it took me a year to iron the bugs out. But generally it seldomly takes over half a second for the lights to respond to a command. If something breaks down it's almost always because I changed a config, not by itself. And it's really fun and nice to be able to make any button do any action by just editing an UI :) Or automate something we feel should happen by itself.
I like to think of it as it being a system that we can fit around our own lives and how we like things, instead of having to accept the situation as is (button is here and controls this light at this brightness). And it's not overly expensive either!
I don't know if that's possible with remote switches, but with zigbee there's overlap possible. (https://www.metageek.com/training/resources/zigbee-wifi-coex...)
Or maybe the batteries in the remote are running low?
And if you would like to also control that light using an app on your phone or voice commands if you use "Ok google": the Broadlink RM Pro could maybe allow you to control the light using an app.
The big advantage is that it provides separate fan and light controls without needing to run new electrical wires through the wall and ceiling.
There is no further integration, or smart app etc.
I can't see which light switch is on or off, so even after years living here I mix up some of the switches.
Sometimes the radio pulse doesn't register, so I have to go back to the switch and press it again.
After pressing the switch, there's a perceivable, variable delay for the light to come on.
Guests are confused.
There are only downsides with such a system.