Raycast, a drop in replacement for spotlight with support for plugins, also has support for searching windows by title. I rarely even use command tab anymore.
There's also a ChatGPT plugin which enables you to easily send queries from your launcher. It's the most convenient way to use the tool in my experience.
Contexts is amazing, being able to search window titles is how I do almost all my navigation between apps now days, especially when I have code editors open to multiple (4+) different projects.
I have an equivalent installed on Windows (I forget its name) and it is likewise just as amazingly useful.
I used AltTab first, then switched to Contexts because AltTab imposed a serious performance penalty on my older Intel Mac. Did you also experience that?
After moving from AltTab to Contexts, I also switched to Apple Silicon. While satisfied with Contexts, I wondered whether Apple Silicon would have obviated the performance difference. Thanks for answering that question.
https://www.raycast.com/