Can home IPL devices cause premature wrinkles? How do they compare to in-salon ones?

Hi, you faint lines are unlikely to be cause by the home IPL machine. Lines may occur due to sun damage or smoking. I would advise you to use facto 50 sun screen and avaoid sun exposure as the best way of preventing fine lines.
Neither home nor salon/clinic IPL machines are successful at 'real' long lasting hair removal. The IPL energy doesn't penetrate the skin deep enough to damage the hair growing cells. Laser based systems in comparison will give 80-89% reduction in hair density which lasts years and would need topped up one a year. IPL systems are really no better than waxing.
The benefit of commercial IPL machines over home ones is in the quality of their filters which means less unwanted light wavelengths and therefore less complications like pigment change. Home machines tend to be less powerful to get over this limitation, further reducing their effectiveness.