I have a UITableViewCell class named CommentsTableViewCell which among other things includes a UIImageView and a UILabel.
You need to create two UITapGestureRecognizer object because UITapGestureRecognizer works with single UI element object. So create second TapGestureRecognizer and assign one to UILabel and one to UIImageView.
From UIGestureRecognizer documentation.
A gesture recognizer operates on touches hit-tested to a specific view and all of that view’s subviews. It thus must be associated with that view. To make that association you must call the UIView method
addGestureRecognizer(_:). A gesture recognizer doesn’t participate in the view’s responder chain.
You need different gesture for all control
let tapGesture = UITapGestureRecognizer(target: self, action: #selector(CommentsTableViewCell.showUserViewController))
avatarRoundImageView.userInteractionEnabled = true
avatarRoundImageView.addGestureRecognizer(tapGesture)
let tapGesture2 = UITapGestureRecognizer(target: self, action: #selector(CommentsTableViewCell.showUserViewController))
nameLabel.userInteractionEnabled = true
nameLabel.addGestureRecognizer(tapGesture2)