Basically do people use timers? An app that prompts you when to shift to a different speed or exercise/resistance? Watch the clock?
As title says, no idea how this might work. I found workout plans, but they are like “so many minutes doing this thing, then switch to the next thing” and I really suck at watching the clock when working out.
I like the classes locally but I’m not able to get to them with my schedule.
If you’re into apple (with the watch) give apple fitness a shot.
Peloton has a standalone app if you don’t mind a non-data experience (you can still wear a hrm/watch of course, but no feedback about exertion in the peloton app.)
Next option is some sort of trainer. You can either bolt a real bike to one, or use a stationary bike that fills the role. A trainer can connects via ANT/BLE to an app. Just google “bike trainers”. With this comes lots of options for apps to track training. E.g. wahoo, zwift, etc.
Best of luck.