This is my workflow too

Works on the laptop screen or docked on my ultrawide

Named workspaces and window rules to open application windows on a specific workspace

Then I bind super + 1 - 0 to switch between them

1 terminals 2 browsers 3 code 4 slack 5 teams (ugh) 6 discord 7 xfreerdp 8 empty 9 empty 0 keepassxc

When I boot up everything opens in the same place

The overview feature is great in Niri

I also use noctalia mainly for a bar at the top