The smallest amount of concern possible. The scientific record is mixed. Some studies find a small effect and others find no statistically significant link. Worst case scenario is 5ish additional cases of ovarian cancer in 100,000 people.
AFAIK no link has been shown between lung cancer and talc. Likely none exists. Lung cancer links to stuff like Asbestos is limited to people like miners and factory workers who breathed the stuff in all day every day for decades. But generally speaking particulates are linked to lung cancer and other lung issues. Probably best to not breathe in clouds of the stuff but I wouldn't worry about normal usage.
My concern would be mostly on the issue of asbestos contamination. I tried to find if there is any known contamination issue in the 90s, but my google-fu got nothing.
AFAIK no link has been shown between lung cancer and talc. Likely none exists. Lung cancer links to stuff like Asbestos is limited to people like miners and factory workers who breathed the stuff in all day every day for decades. But generally speaking particulates are linked to lung cancer and other lung issues. Probably best to not breathe in clouds of the stuff but I wouldn't worry about normal usage.