The only useful tool for me would be one which allows me to change the lens in a way that PhotoLab 2 and 3 recognise the new lens and then save it into the RAW file. I believe Photos EXIF Editor (the one I have) only saves into jpeg. Systweak Photos EXIF Editor was money thrown away and time misinvested.
What is the full name of the EXIF Editor you bought, the name of the publisher please. Could you let us know what its limitations are and if you’ve been able to change a lens with that tool and have PhotoLab recognise the RAW file as shot by that new lens? If so, I have another €12 to spend on a solution to this issue. If not, it’s just more time and trouble for no useful result.