All LED lamps burned out: what is the reason

It is hardly a matter of the wiring if the wiring is new. Check the voltage in your apartment, LED and energy-saving lamps do not like both undervoltage and overvoltage.

And take measurements in the morning, in the afternoon, in the evening... It is also possible for you to occur. This can be if there are powerful consumers of electricity or production nearby. The third reason is overheating. if the lamps were used in closed shades, their service life is usually reduced. But this is hardly your option, because you write that there is a GX53 base in the stretch ceiling, then I believe that these are spotlights with an open shade or without it at all ...

Perhaps the only thing that can be a problem with the wiring is either a bad contact somewhere or a bad and sparking switch. From this, power surges occur in the network.

I recommend reading this article. https://samelectrik.ru/prichiny-chastogo-peregoraniya-svetodiodnyx-lamp.html.

I also recommend buying a protection unit for LED lamps in case of power surges, for example, Granite BZ-300-L