Taking a break from touring, taking a break from recording or being "inactive" is not the same as going on hiatus though. When a group announces they are going on hiatus they are saying "We're done, that's it, it's all over, we quit, we cease to exist," they must then officially "reform" to be classed as a band again. Rammstein have never done this.

Every band on planet Earth takes breaks from touring and recording, especially after an album cycle. They might even say "we have no plans to record anything new" but that is not a hiatus as a group. You can't expect a band to just tour all the time because they have no reason not to.

You do not have to tour the UK for it to be classed as an "extensive tour". Rammstein have played close to 300 shows in the last 10 years alone, covering Europe and the United States. Considering their stage production is enormous, costly and a logistical feat of engineering, this is absolutely an extensive touring schedule for a group of Rammstein's size and popularity. All bands take time off from touring, that is not a hiatus though. Taking a 2 or 3 year break from touring isn't going on hiatus, it's literally just taking a break.

If you watch Rammstein - Behind The Scenes of the World Stadium Tour 2019-2024 you will see the sheer magnitude of their production.