15 years ago I thought: should I go all in on i3 or tmux ? both manage windows for me, I don't need to learn both tools. Since I use web browsers for my work, I decided to go all in with i3. I don't regret that choice but I regret seeing the problem as "this or that" when I could have mastered both.
I used both for a long time. i3 for non-terminal work, and tmux in the terminal. Loved it, and am ready to move back to Linux for better OS-tiling management. I also ran it on OpenBSD on my laptop as a daily driver for about ~9 months. Loved the security/simplicity, but made it more difficult or impossible for certain Linux only tools.