Squashing is kind a blunt tool that is useful sometimes, but can be perfectly replaced either by crafting your commits with more care or doing interactive rebasing.
I once had to enforce to an developer that wanted to make 20 commits per PR that were titled like "wip" "wip" "wip" "fix bug" "fix mistake" "format code" in a PR that only changed like 10 lines of code in the end.
In this case, the main problem for me was that git blame became useless because this developer was touching way more lines than necessary and then undoing it using the code formatter.
I once had to enforce to an developer that wanted to make 20 commits per PR that were titled like "wip" "wip" "wip" "fix bug" "fix mistake" "format code" in a PR that only changed like 10 lines of code in the end.
In this case, the main problem for me was that git blame became useless because this developer was touching way more lines than necessary and then undoing it using the code formatter.