I think swimlanes is a feature that benefits everybody, not just developers. At a most basic level, swimlanes by assignee would be crucial for a family board (as opposed to coloured cards by assignee, since colours could be used for category of task, etc.).
So I used Trello at home, and Jira at work. I loved how fast Trello was (despite being Electron); it’s still probably the fastest Electron/web app.
But the lack of swimlanes pushed me to Favro, which was too slow to enjoy using. When Atlassian bought Trello I figured that swimlanes would never arrive, since they wouldn’t want to eat into Jira features and market share (which i disagree with, but I digress).
As a result I use Trello casually and for simple projects with my wife, but didn’t go all-in on it. I’ll give this Power Up a try though!