Windows 11 Style Start Menu only (have not looked at the other styles):
o Center Start Button - The Windows 11 Style is completely unusable with it centered. The MS Windows 11 start menu will pop up from time to time and when it does you can slowly double click on the start button and it will alternate between the MS menu and the Start11 menu. If the Start11 windows menu is working and you restart Explorer then the MS start menu will become the default. Seems to not be a problem with it Left aligned.
o Rearranging Icons - When dragging icons to the position you want them other icons move around. Arranging them is impossible and I finally gave up trying.
o Shortcut List - Reordering the list does not work. Does not show up on the Start menu as reordered and when go back into the settings the list is reset to the original order.
o Icons disappearing - Seems that when you get up to a certain amount of Icons in the Windows 11 style (no mater how big you have made the start menu) that if you add another icon it replaces the first icon in the grid. I added 2 icons (right clicking on shortcuts and add to star11 menu) and then noticed that the Windows Menu and Onenote icons were missing. These were icons 1 & 2 in the grid.
o Taskbar Windows 10 style menu - Menu only pops up when you right click on the main monitor and not on the 2nd monitor.
o Start Menu Closes - The menu closes after you click on it if you move your mouse to quickly. You have to pause before moving the mouse to the start menu.
o Double Popup - Occasionally when right clicking on the taskbar I will get two pop ups. Never saw this before Start11.

o Recently installed list persists - This list continues to show a list of apps even though I have turned it off in Windows 11 and in the Win11 start menu the list is now gone.
o Crashed - Opened up Start 11, clicked on All Apps, started to scroll down, and app hung. Had to restart explorer.
o Win-X menu only popping up on Main monitor - on a dual monitor system when right clicking on the start button on the 2nd monitor the Win-X menu pops up on the Main monitor instead. Could be a Win11 issue as this also happens when I turn off Start11 menu and the start menu is on the Left vs the Center.
Windows 11 Home - 21H2 - 22000.194 - Windows Feature Experience Pack 1000.22000.194.0
11th Gen Intel - NVIDIA GeForce 472.12