Hi,
I don't think so. In the future all apps and programs should support new icon sizes.
The start menu supports 24x24, 32x32 and 40x40 (smal and medium tile). And the taskbar uses 16x16 and 24x24.
E.G. explorer.exe supports follow icon sizes: 16x16, 20x20, 24x24, 32x32, 40x40, 48x48, 64x64 and 256x256!
Total Commander supports 16x16, 24x24, 32x32, 40x40 and 48x48 icons.
Here you can see the different (collage):

The bottom taskbar shows the native icon size (24x24). It would be nice if Start10 could fix this.
I remind you on your email subject: Fix the Windows 10 Anniversary Update with Start10