Do you clean your guns before you shoot them the first time ?
Yes, each new semiauto pistol I buy (or was issued) gets field-stripped, inspected, cleaned and lubricated before I shoot them for the first time.
This gives me a chance to discover any obvious problems that might have been missed during production.
You might also be surprised at the debris that can find its way into new pistols during production.
Some pistols may ship with an excessive amount of preservative/shipping oil (including inside magazines), and some pistols may ship almost dry. Both conditions ought to be resolved, and the pistol lubricated in the manner recommended by the manufacturer, before the pistol is used.
Even though I'm an armorer for several makes/models of handguns, a field-strip level inspection, cleaning & lubrication before use is usually enough for
my needs.
Also, as an armorer, I've resolved more "problems" experienced by other new owners/users than I can remember by simply cleaning & lubricating their new pistol.