The cheapies definitely can take a great pic. No denying that.
Mine all suffer from dust ingression.
They’re like vacuum cleaners the way they suck the dust out of my bag...
Unfortunately, most zooms today are extending zooms.
And to extend, they have to suck in air.
Even with the pro zooms, only the 40-150/2.8 and I think the 150-400/4.5 are internal zooms.