If you can get multiple companies to time their interviews and offer stages perfectly and then get one of them to match the other, that’s quite lucky.
However, it’s not like it’s an easy solution. It’s transforming one problem into a much harder one: Now you have to get a second offer that’s even higher and get it at exactly the right time to use it as leverage. How do you negotiate that second offer to 1.25 * $X so you can leverage it to get the first to the same level? That’s left as an exercise for the reader.
“Just get a second offer for 25% more” is more of the wishful thinking negotiating strategy. In most cases it’s more realistic to set a target number and stick to it, being willing to walk away and continue the job search until it’s met.