Experience installing 60x60 tiles yourself?

In this context, another question comes to mind: Can a tapped-in 60x60 tile be removed without damage if the screed is not quite level somewhere and some adhesive needs to be taken out or removed?

You can remove 50 x 50 tiles again.

In this context, another question occurs to me: Can you remove a tapped-in 60x60 tile without damage,

Yes.

if the screed is not completely level somewhere

You can already tell that beforehand. If no butcher lays the screed, I wouldn’t see any reason why you couldn’t tile there without problems.

and some adhesive has to be taken out or removed?

If you work 70% properly at a DIY level, something like that must not happen.

So you can resume 50 x 50 again.

Ok, thanks! Then I hope that the 10 cm longer edge won't make too much of a difference.

If no other butcher lays the screed, I wouldn’t know any reason why you couldn’t tile there without problems.

Normally, I would have trusted myself to handle 60x60 tiles without asking anyone beforehand. But when you read here that even professional tilers sometimes produce botched work, doubts do arise...

Normally, I would have trusted myself with 60x60 without asking anyone first. But when you read here that even professional tilers sometimes deliver botched work, doubts start to arise...

They deliver botched work because they work fast, fast and because they don't care, not because they can't do it.

The tiler was removed from the list of trades requiring a master craftsman certificate in 2004 under a red-green government. In this respect, a certain loss of quality among many tilers can be observed. It is actually better to do it yourself sometimes. In case of doubt, I would always level with self-leveling compound. And you need a suitably matching tile cutter.