We have had the header icons theme component set up like that for the support team for ages. It should be hidden for anyone outside of the Technical Advocates group through some CSS tweaks since it’s not relevant to others.
I’ve tried to repro with a test account using the steps that were shared, but I’m not seeing any sign of the icons. Are you still seeing them @NateDhaliwal? If so, can you repro on any other platform / browser?