The hardest thing about PZ riding without a bike where you can't do the FTP test and without an actual power output number is that it requires that you estimate your zones based upon perceived exertion rather than actually knowing your output. I.e. for me, the Peloton has an output number, and based on my FTP test I know that the middle of Zone 2 is about 200W, and the middle of my Zone 3 is about 255W, so when I'm on a PZE ride and they call out a zone, I just need to keep my number there. Without that, you'll be having to estimate.
That said, IMHO the best instructor for learning to estimate is Denis. Try this 60-minute PZE ride. The warmup is a flat road for one song, then spin-ups, and then a build where he describes how Zone 2 and Zone 3 should feel. Generally Zone 2 is going to be the maximum of what you could do while keeping your mouth closed and breathing entirely through your nose. Zone 3 is going to be (on Peloton) probably 4-5 points of resistance higher than that at a given cadence, and is going to be where you pretty much immediately have to open your mouth to breathe, but you're not getting ragged or feeling like you're going to run out of steam. As long as you can manage to stay in the right perceived exertion ranges, PZE is nothing "advanced" or that you need to ease into.
I figured my lack of an official Peloton bike would be a hindrance to PZ rides. Heck, when I found my cadence monitor/display on this stationary late last spring (or early summer?) I realized how off my perception of cadence was, and after my summer hiatus I'm having trouble remembering how I equated resistances. Perception isn't easy to get dialed in.
Yeah, that's kinda my accountability system. I know I'm the type that if I start skipping one day during a week, it's going to be two days a week, and then three days a week, etc. I'm not disciplined enough to, say, take one rest day per week and still know I'm going to make working out a priority on the other 6.
This sounds similar to my issue. I'm hoping this century ride I want to participate in next spring will give me the motivation I need to shrug off the broken streaks and keep plugging away. There are a few different distance options at that event, and I think I've settled on a floor of riding at least the x-many mile loop, and that isn't what I usually feel like I can ride early in my cycling season. So it'll be tough to get daily streaks going, with all the weekend trips to visit family we'll be doing over the next couple months, but I want to make it easier on myself when I really start training in January.
But yesterday I just wasn't feeling it. I did the 120-minute ride Monday and didn't want to ride again Tuesday, and I knew it was the last day of the month and I'd already gotten gold in the strength challenge for the month so I figured I'd put off starting strength to today so it counts for November. So all I did was a 10 minute stretch, which maintained my daily streak but didn't require much effort.
Have you tried the 20-min recovery rides? Or I found probably the only standalone 10-min low impact ride that Hainsby did Nov 2022. Not saying "dang it, go do this!", just wondering if those options are on your radar, or maybe they just don't interest you.