My method by renaming files is, that I always put a constant number at the end and the next needs to be a non numerical character. My individual images files are all named with “-0” at the end. Like
YYYY-MM-DD_hh-mm_xxxx-0.tif
2020-01-30_12-20_0001-0.tif
2020-01-30_12-27_0002-0.tif
2020-01-30_12-35_0003-0.tif
2020-01-30_12-35_0004-0.tif
xxxx is the original sequential number of the camera.
In this case i can Drag and Drop from wherever I want. Even if there was a camera burst, it will not formed in a sequence by this method. JPG and DNG also works well.