Is this a low complexity region in our human genome? I have a screenshot where many of my reads were aligned to a region that I suspect a low complexity region. Although you can't see, all those reads are clipped in the cigar strings. Sample cigar strings: 64S32M29S, 74S32M18S etc... Consequently, the actual sequence mapped to the genome is less than the read length.

I have a feeling that my alignments are bogus because of the complexity and clipping, but I'm not sure if the complexity is indeed low. All I see is a few "T" between a bunch of "A". How to define a low complexity region?

Q: Is this a low complexity region in the human hg38 genome? Would that be fair if I report "the alignments are likely be errors due to the low complexity and alignment clipping"?
Yes, that's a short low complexity region wedged between a SINE and an snRNA. More importantly, your alignments have MAPQ of 0 (that's why they're filled with white in IGV), which will happen if they map equally well to multiple locations. Without looking at the sequence one can use that alone to determine that these are not trustworthy mappings.