I am not actually using NetSuite Next yet but figured this would be the place to post about Redwood Experience issues as I imagine they will carry into NetSuite Next.
NetSuite needs to make the side to side scroll bar for subtabs in Redwood Experience thicker so it is easier to click and drag. We have a lot of subtabs on the Customer record. If a role has access to see them all, they have to drag side to side to see the far right ones. The user must click very precisely to be able to drag it.
My SuiteIdea was approved as Enhancement 903069 so I am posting a discussion thread here to encourage and gather more votes for this change.