I have yet to feel too much jealousy of the things listed in the OP because the goals of the comics that I've been working on over the last year don't lend themselves that well to jealousy. My main comic here on tapas I started mostly as an exercise to dip my toes in and explore the world of webcomics (so i legit had super low expectations), one was a just-for-fun collab project, and the last was a shortie made for print.
Not that I don't feel any jealousy, but like @AmysGames said it's less about popularity/numbers and more about like... it's hard to look at people's art that's really good and not wish you were already there without all the hard work lol.
In general tho like if one is feeling jealous over numbers I think they should evaluate what their goals and motivations are and act accordingly. If you're chasing those numbers and your current comic isn't getting there it may be time to try something new until they get there. Or if you're pursuing a passion project that you're really committed to sometimes it's necessary to accept that it won't get that popular if it doesn't seem to be taking off (or at the very least will be a slooooooooow grind).
So like yeah, since my goals haven't been getting popular yet that hasn't bothered me much. I'm just working on the comics i want to without staying too much. In a year or two I might try for that and will have to reevaluate my opinion then