Most of us will never really test the grip limits of a tyre – our relatively poor technique will generally mean that we fail to extract the maximum.
I’m sure we’ve all slid the front wheel in a corner, locked up under braking, or spun the rear on a slippery or technical climb. Yes all can be attributed to poor technique that would be avoided by a more skilled rider but all are exceeding the limit of the tyre.
Learning the limit of your tyre and riding within them is part of the fun of it. This can be entirely subconscious, or as spreadsheet nerdy as you want. You could be changing tyres weekly or run the same set for a year and replace with an identical pair.