Well, you can also get deeper panels on site. We also have slightly deeper ones and, due to the finishing strip, a depth of 62.5cm. The corner connectors can be drilled on site (under the panel).
Because of countertops, we also went to Hornbach to take a look:
Of course, you can order any depth, but that is expensive. In stock, there are exactly 3 laminate boards in different shades of gray, which look very high quality, with a depth of 635mm.
There is also beech solid wood in 900mm depth, but the boards are only 3m long. Everything is, of course, cut to size, meaning you only pay for the length you need.
It is a pity that Ikea no longer offers more decors for the Personlig countertops. When I was recently at Hornbach, I saw at the wood cutting section that Hornbach sources panels from Lechner, just like IKEA. However, the prices differ significantly. To what extent there are qualitative differences, no idea.