I know this is the popular sentiment pushed by remote work fans, but in offline contexts I hear the polar opposite: Productivity struggles are ubiquitous during COVID WFH.
Even the most pro-remote people are quick to admit that COVID WFH is not like normal WFH. Some places even had school closures which meant parents were juggling kids schooling and their jobs. Maybe you worked in a company that didn’t have a lot of employees with these problems, but it has been a significant challenge for many people and companies in the past year and a half.
I managed remote teams long before COVID and even I wouldn’t ever suggest that remote has no effect on productivity. Remote is hard and I’d even say that most people aren’t cut out for it, at least not without significant mentoring and additional management attention.