Stage Manager and also Web pages as Apps

I don't know whether I am using these interesting innovations in the best way.

STAGE MANAGER When working in two windows with Stage Manager on, I almost get seasick as one window swerves back and the other pops forward. I am better having both windows open side by side (I use Windows Grid when I can) WEB PAGES AS APPS

My online accounting software when used as an App from the Dock doesn't seem to have History so moving between pages is much clumsier than the online Safari version. Is there a button or link I am not seeing?

Thanks.

By the way, what I really like in Sonoma is the new Desktop and the Photos widget. The wallpaper is a detailed lifted from a Japanese print I used to have.