No, that's just what people who believe in conspiracies (like "everything is Russian propaganda") believe.

Except if you consider the "US department of health" as Russian agents:

"The NTP studies found that high exposure to RFR used by cell phones was associated with: Clear evidence of tumors in the hearts of male rats. The tumors were malignant schwannomas. Some evidence of tumors in the brains of male rats. The tumors were malignant gliomas. Some evidence of tumors in the adrenal glands of male rats. The tumors were benign, malignant, or complex combined pheochromocytoma."

https://ntp.niehs.nih.gov/results/areas/cellphones/index.htm...

https://www.ncbi.nlm.nih.gov/pubmed/29530389

https://www.sciencedirect.com/science/article/pii/S0006291X1...

https://www.researchgate.net/publication/298533689_Internati...

https://www.ncbi.nlm.nih.gov/pubmed/29459303

"The results also show that the peak-to-average ratio of 1,000 tolerated by the International Council on Non-Ionizing Radiation Protection guidelines may lead to permanent tissue damage after even short exposures, highlighting the importance of revisiting existing exposure guidelines."

https://www.ncbi.nlm.nih.gov/pubmed/30247338

"Our results show that 5G downlink RF fields generate significantly higher power density (PD) and specific absorption rate (SAR) than a current cellular system. This paper also shows that SAR should also be taken into account for determining human RF exposure in the mmW downlink."

https://arxiv.org/abs/1711.03683

https://www.sciencedirect.com/science/article/pii/S016041201...

"Preliminary observations showed that MMW increase skin temperature, alter gene expression, promote cellular proliferation and synthesis of proteins linked with oxidative stress, inflammatory and metabolic processes, could generate ocular damages, affect neuro-muscular dynamics."

https://www.ncbi.nlm.nih.gov/pubmed/29402696

"The analysis of various antioxidants in the plasma of exposed individuals revealed a significant attrition in glutathione (GSH) concentration (p < 0.01), activities of catalase (CAT) (p < 0.001) and superoxide dismutase (SOD) (p < 0.001) and rise in lipid peroxidation (LOO) when compared to controls. Multiple linear regression analyses revealed a significant association among reduced GSH concentration (p < 0.05), CAT (p < 0.001) and SOD (p < 0.001) activities and elevated MN frequency (p < 0.001) and LOO (p < 0.001) with increasing RF power density."

https://www.researchgate.net/publication/318916428_Impact_of...

"► Base Station (BS) clusters and deaths by neoplasia in the Belo Horizonte municipality have been identified. ► The mortality rate has been higher for the residents within an area of 500 m from the BS. ► The radiation superposition near the BS has also been observed; the nearer the stronger. ► Measured values stay below Brazilian Federal Law limits that are the same of ICNIRP. ► The human exposure pattern guidelines are inadequate. More restrictive limits must be adopted urgently."

https://www.sciencedirect.com/science/article/pii/S004896971...

http://www.5gappeal.eu/signatories-to-scientists-5g-appeal/

https://mdsafetech.org/2018/07/18/dr-leszczynski-sounds-warn...

https://drive.google.com/file/d/1DNh0DEBrK8LyQjP1uTUjYMFguO4...