Maybe you should look at the actual genes on the chromosomes and not just the number of chromosomes, have you tried that?
There was this thread:
https://discourse.peacefulscience.org/t/chromosome-fusion-in-humans-or-not/
and this paper:
In which we find these nice figures:
No.
Those are all based on assumptions that have no support in any empirical evidence from real biology.
Well if one is blind and/or have cognitive problems then I’m sure that’s what it looks like to you. But up above there’s some more detailed data that goes way beyond there mere number of chromosomes.