Here's my advice for new power users: don't do anything different for a while. You don't know enough to be changing things yet. Just ride your normal rides, at your normal effort levels. Sprint, if you want (everyone does). Try to find your max power, if you want (everyone does).

Learn to use the buttons so you don't have to fumble. Download the data after every ride to your preferred application, but don't waste too much time yet trying to figure out what it all means (everyone wastes some time trying to figure out what it all means -- just don't waste too much time). Importantly, if you already have a logbook, continue to use it. If you don't, then start making notes in your software app about your RPE and anything unusual (how well you slept the previous night or what you ate, if they were unusual; if it was windy or rainy or hot or cold). That will come in handy when you look back.

After you have more outdoor rides under your belt you can start to alter what you're doing. You don't yet know enough to do that, so you'd just be doing things randomly.