Good question, and the advice does genuinely conflict because both camps are half right.
As Gabriel7979 said, it's pixel width rather than characters that decides where the cutoff lands — roughly 600px in practice. So a title full of narrow letters like 'i' and 'l' can stretch well past 60 characters, while one with wide letters gets cut much sooner.
My own approach:
1. Front-load the important part. Put the primary keyword and the hook in the first 55-60 characters so nothing critical ever gets cut, no matter the device.
2. Don't be afraid of a longer tail after that. If adding a differentiator (location, year, a second keyword) makes the title more compelling, include it. Google will simply truncate the end on narrower displays, and users still see the full version in most desktop results.
3. Watch actual SERP display rather than counting characters. A quick check with a pixel-based preview tool tells you exactly where each title cuts off.
4. Remember Google rewrites titles anyway when it thinks it can do better — a well-structured, descriptive title (even a slightly long one) gives it better raw material to work with than a bare keyword stub.
Bottom line: write for the click first, and use ~60 characters as a guideline for where the essential information must sit, not as a hard ceiling.