If the circle that appears around the initial bomb circle, then collapses in and disappears hasn’t shown up yet, then there is time to full stick defuse. As long as you are on the bomb before that circle shows up, you have enough time. If you’re confused by my description, look at this clip by Ethan today.
https://twitter.com/ethanarnold/status/1516263011283095552?s=21&t=hAvTO31ZHRz80c_JdFHQWg
The circle forms just after he starts defusing, meaning he had enough time.