Might be able to melt the end a little with a heat gun or maybe a quick passing over with a lighter if careful not to ignite. I’d experiment beforehand as you wouldn’t want to ruin your work right at the end though.

Finally got it done. Had real issues with the screwdriver fit; I ended up filing down the tip and all the edges by a few microns to get it to bite the screws enough. Corner screws were an absolute nightmare. Also, the front camera mount on my new screen was mounted badly by about 10 degrees rotation, so that had to come off so I could reuse the original. Thankfully everything is working properly and good as new again.

Lesson learned... never drop an iPhone 4/4S!