No issues with it damaging glass. However, it will grow up and through screen tops. So damage to the screen is another issue.
Besides it is actually more of a pest to have in a tank as it requires constant cutting and maintaining. Good only if you need quick growth in a tank or use as a packing material.
You can pull it off but it can leave small holdfasts behind, if allowed to hold onto the glass for a long time, these are visible as small black specks. These have to be scraped off the glass with a razor.