I have. 2017 HR-V. I’ve noticed water around the boot catch in bumper and then noticed the carpet under the boot in the carpeted spare tyre area was wet.  Anyone else experiencing this issue?

Worth checking your rear lights aren't leaking water into the boot. Quite common place for water to come in and track along the boot area to the lowest point.
If you remove the lamp units and see if the water has been getting through the seal and reseal with clear silicon if necessary

I have a 2016 HRV and have the same issue.  Had a new boot seal fitted and the problem is still there