Hello,
In Ethos as well as Renew sites, I have a problem with the fixed navbars: they jolt when you scroll up. It happens in different browsers (chrome, firefox), on different desktop devices. Clearing cache does not work. I disabled all plugins.
See video: https://youtu.be/WQSeBUbK3Ho. If you watch closely, you see the navbar go up a bit and then settle again.
I noticed that someone reported the same problem in 2017, but the support team could not reproduce it. I hope in the mean time others reported it as well and a solution is available.
Thank you in advance!