What we can say is that for sex with a condom with or without viral suppression, there is no possibility of this if the condom is used consistently and correctly. In the context of oral sex as well, there are no confirmed cases of HIV transmission. There's very limited evidence, but there's a theoretical possibility of this if a person performs oral sex on an HIV-positive person and ejaculate is present. However, there are no confirmed cases in a scientific study.
On May 7th, 2019. See this statement in context.