We acknowledge the demand for this capability and are exploring the best possible solutions to enable this.
The option to “discard” suggested contacts in your chat list is rolling out to users. We will be making further changes to make suggested contacts more relevant for new users in the future as well, so marking as partially completed. Thanks for your patience with this one.
~Alex & the Teams teamTRose commented
Yes - please either remove or allow for the removal of suggested persons. It's old and contains people I don't want to engage with.