Aurora R15, Intel CPU temps

I bought an Alienware Aurora R15 about 3 years ago.  It has a 4080 nvidia card in it and it has been running great until recently.  What I'm seeing recently is idle temps of around 50 to 60...sometimes near 70.  And game temps consistently in the 80s.  Just on the CPU though.  The GPU runs cool as a cucumber.  

I've got the liquid cooling system that came with it still.  So I'm worried that's failing/not doing it's job.  Or maybe I'm just being too cautious and this is fine?  It's still under warranty, thankfully.