This seems like a wasted complaint based on how many comments I've read in this thread, and how far the dates go back on those comments, but you never know when just one more complaint will be the turning point, so....
This has to be the most baffling change from M$ I can remember in the 20 years that I've been a software developer, and that's saying a lot when considering all the silly changes over the last 20 years. Changes that mostly were undone or improved enough to keep everyone happy along the way. Especially by now, they should so used to making changes people didn't like and then having to do more to resolve it, that you would think they would take a LOT of caution before forcing something like this on users.
The stats on improved efficiency when using a moveable/customizable taskbar when performing complicated, power user type tasks, are undeniable. I wish I could listen to the conversations the MS developers had where attempted to argue why locking it to the bottom would be better for these types of users, whether they want to accept that or not.
Microsoft, if you are listening....my entire organization upgraded to Windows 11 over the last few weeks, and this design change has caused major disappointment and panic for probably every single employee in the IT department. Probably other departments too. We've been talking about this about as much as we are talking about our actual work. We are currently discussing whether this is enough of a setback that we should go with another OS.
I suggest that when you are contemplating whether to add this taskbar feature back, you look not at the supposed number of users that would use it, but instead the number of reasons why a user might need that feature. Reading just the comments in this thread, there are even more justifications to do this than I imagined.
Please, please, please resolve this taskbar mess.