Hanging ceiling for LED

Are not very recommendable... better consider installing real LED lights. These also deliver what is promised on the packaging and are usually much flatter... also as spotlights...

What is wrong with 230V LEDs?

Nothing, just that you don’t have to buy another transformer, which also needs to be accommodated somewhere

There are also gx53 spots, which are extremely flat.

the 230V before that...LEDs are low voltage light sources...therefore, at 230V you have a driver before it, which must fit into the socket. It should be clear to everyone that proper heat dissipation is practically impossible here.

And that way the installed LEDs might possibly last the specified hours...but the driver will fail relatively early in comparison...

Nothing, just that you don't have to buy another transformer which also needs to be placed somewhere

But then it's no longer a 230V LED light source...

LEDs don't work with 12V either, do they? So there is also electronics needed here?!?

That a reasonable heat dissipation is practically impossible here should be clear to everyone.

??? No, it’s not clear to me.

And so the installed LEDs might last the specified hours... but the driver will fail relatively early in comparison...

How long do you think the 230V lamps last?

LEDs do not operate with the voltage (12V) but with the required current (mA), which is then provided by the driver. If the electronics are built into the bulb, the likelihood that it will NOT reach the hours stated on the packaging is more than high.

How long do the 230V lamps last in your opinion?

Not longer than usual energy-saving lamps, for example, since the construction is similar. And that is not my opinion but a fact. Electronics ages, and with the addition of heat, even very, very quickly. See, for example, the wave of LCD TVs that have failed in droves over the last 5-10 years due to dried out electrolytic capacitors... And the drivers in the sockets of LED bulbs have the same electrolytic capacitors inside... However, if the driver is outsourced and it is, so to speak, a "real" LED lamp and not a retrofit, then thousands of hours of burn time could be reached again. Only the color will probably change at some point, but that is also stated on the packaging.