Extended support still provides security patches, which are the important updates. There's a reason why so many businesses have stayed on win7 & that's because it's still patched & it's known quality product, I'm not by any means sayings it's wrong to go to win10, but for an average home user, the need isn't pressing & won't be until major software venders stop supporting win7,

I've used all the OS' mentioned & ultimately decided that win7 was/is still at least as reliable as 10 & arguably as secure. Win10 is Microsoft's move towards a network dependent subscription model - that and the amount of data it constantly sends back to microsoft are reasons to at least be cautious. Since the issue the OP described only occurs in Chrome, it remains logical to try to fix it first before diving into OS upgrades & purchasing hardware.