At an old company I joined they had rolled them out to all employees. Six months before me getting onboard they had already given up, but we still had to support the ones out in the field. Fun fact about Surfaces, despite it being MS hardware running an MS operating system, the Windows 10 and 11 base system does not have drivers for the keyboard or mouse. You have to use a special image for the Surface devices. That meant maintaining two custom WIM images for deployment and keeping them in sync. We scrapped the remaining Surfaces and gave people the choice of Macs or ThinkPads instead. You can guess which was more popular among the office folk.