Meat Lighter is driving me nuts

Hey guys, currently playing Stalker 2 on Xbox game pass, and I accepted a sidequest from Harpy to find the damn Meat Lighter artifact (30000 coupons, so why the hell not you know?) and I'm slowly going insane. The only bit of info I found about it is it's a rare drop from thermal anomalies, and some other user on here (pistonsnob) said they got it from the Conflagration in the Burnt Forest after save scumming.

So that's what I'm doing, and I'm constantly getting Dead Sponge instead, so I'm wondering if I'm wasting my time doing this and what's the best way to get this damn artifact. Any help appreciated, thanks!

Edit/Update: I've searched the Burnt Forest anomalies, the Old Mine bodies, and the Scientist Bunker, no dice what so ever. Even save scummed at the Burnt Forest and Old Mine, at least 200 meters away, no damn Meat Lighter.

I've refused that quest, I do NOT have the patience to either wait for an emission to reset the anomalies and look again (heard that's how that works, don't know could be wrong), or blindly search thermal anomalies and hope I get lucky. Not even for 30k coupons, I can just scrounge guns and sell them and make decent money.