Personally, I do not make such purchases unless necessary, in order to avoid both high prices and tax revenue for this government.
I did not buy a smart TV, after a while incompatibility problems, the market lags, the hardware is insufficient. Instead, it is more functional to choose a TV with a nice screen and to connect an Android TV or computer, which does not feature "smart".
qled, watch out for the oled conversation. shadows may remain on the screen. Choose technologies that have been around for a long time and have now come of age.
If you don't need it, don't buy 4k or higher.