Is a strip foundation necessary at all for a small wall?

We have an offer for the L-stones including delivery and installation. Around 70,000 euros. The concrete stones cost less than 10,000 euros including everything + own contribution.

Here is one more question about the L-shaped blocks. I somehow find it hard to imagine that an L-shaped block with a thickness of only 12 cm and a height of 1.8 m would be sufficient for my project. If the 60 cm thick concrete blocks are already problematic, is a 12 cm L-shaped block supposed to withstand this load? Sure, it won't topple over because the load holds the block in place, but can't it also break at the bottom corner? Or is the whole thing really that unproblematic?

For my locally manufactured concrete blocks, there is an easy-to-understand structural analysis online that happened to be done by my house engineer. But for the L-shaped blocks, I can’t find any usable information.

L stones 2 m high cost max 400 euros per meter. They are also lighter. Don’t let anyone tell you otherwise about the 70 k.

The Lego version for 10 k should be snapped up immediately.

I somehow find it hard to imagine that such an L-shaped stone with a thickness of only 12 cm and a height of 1.8 m would be sufficient for my project.

It has a massive base for stability and especially reinforcement steel inside.

It has a massive footing for stability and reinforcement steel inside in particular.

In addition, it uses the earth load on the footing as a counterforce.

Since the topic will also be very relevant for me, I am happy to follow along here. Many thanks and all involved