I have sent three Rugers back for service, one new one and two fairly old ones.
The new gun was a 10/22 stainless international that had a screw on the nosecap that wouldn’t unscrew so I could install a BX trigger. The sent a label, I sent them the gun and BX, it came back in 8 days all put together. ( and the old trigger came back with it. )
The used guns I bought that went back separately were both .41 Magnums; a 7.5” Redhawk and a 6.5” Blackhawk. Both were bought used and the first time I fired them both had light strike issues. Ruger sent me labels, I sent them the guns, both came back resprung and ready to shoot.
I, too have more Rugers that any other marque; DA and SA revolvers, autos, rifles, and a Red Label O/U 20 ga. Partly because they are (were?) affordable, partly because they last and partly because they make more different types and calibers of rifles, handguns and (formerly) shotguns than anyone else.
Stay safe.