That area must not be a bog right? A bog is really loose mud and more organics than clay right? Just guessing, no experience with bogs.
Can I ask you why you wear what you wear? Is it for protection? And/or for getting more stuck?
I think i have explained that area before, but there are a lot of different types of bogs around. What you describe is often a "raised bog". One of that type is fed only by rainwater and consists of layers and layers of rotten moss of thousands of years.
The one i have here is much younger. This is a former lakebed that has been overgrown by lots of different plants (not only moss) and is fed by groundwater, too. Only a few feet below the surface you hit the much more sticky lakemud and that's a dangerous combination. The lake is still there but has become a lot smaller and surrounded by weeds (mostly inaccessible). It may become a raised bog after a couple more thousand years.
Also that area is in the central/northern european plain. And the soil there is basically all peat that has been cultivated. Still it gets muddy fast when it rains a lot. According to wikipedia you can call it a "lake edge fen" https://en.wikipedia.org/wiki/Fen
I wear my gear because i'm really into it. I love boots, waders and rubber raingear and getting muddy with them feels just the right purpose for them. I could never imagine going into the mud just with shorts or normal gear like others here like to do. Getting much more stuck is a very nice bonus, too!