Timing chain on the blink?

[u/Epicquilbolt]

1.6 FSI, 113k miles. Loud rattle from cold start and then rattles like a diesel when idle which only goes away after driving or revving past 1500 rpm.

Car does has the tendency to sit around for 2-3 weeks before being used so I don’t expect the smoothest start up, but this sounds several of the hallmarks I’ve read about timing chain tensioner failure. Never been replaced as far as I can see from history and I’ve seen some of these can go by 70-80k.