preventative cancer screening is one of things that might help and it might not, so not doing it for a few years may not have an affect. It's a pretty wooly topic but it's "allowable" to discuss the counter productive role of cancer screening (for now)

Basically it boils down to since cancers are constantly occouring in your body and being taken care of every day, the more you look the more you find.

A good analogy that helped me was think of a kettle boiling, there's a few big bubbles on the surface, these are the cancers that kill people. But as you go down there are more and more smaller bubbles that are continually being created and rising but never make it to the surface. Treating cancer has a toll, and if you treat a cancer that was never going to cause health issues in the first place, that is a net negative. (Not for pharma companies obviously)

There are plausible biological pathways for mrna to cause cancer, but cancer rates will always go up in tandem with cancer screenings. If there's any aspect of covid that's not as bad as it appears, it might be the cancer part.