I Zwift a lot, even during warmer months. I like the controlled environment and training aspect of it all. I noticed when viewing another athlete in Strava, the "Side by Side Comparison" does not reflect this (very real and full of blood, sweat, and tears) data for the last 4 weeks (maybe all year/all time).
Actually, it appears there is no way to merge Virtual Rides or even display Virtual Rides for last 4 weeks, even on "My Stats" on my profile page. The top of my profile page has a large font "Last 4 Weeks 6 Total Activities", but "My Stats" and "Side by Side Comparison" has "Last 4 Weeks Activities / Week 2"