I know this tends to go down poorly on uh.... OTHER threads, but it’s worth mentioning that digital sales tend to be more of a thing for seinen titles over shonen, so they’re probably making up decent ground on there too (maybe mot Dorokei, which charts.... okay on ebj/bookwalker/amazon, but Rikudo and Shadows House are ones I’ve seen comfortably charting whenever a new volume is out, especially with Shadows House having a full-colour edition for 100円 more)
Like we’re not talking the ridiculous difference between digital and print that a series like Goldfish Wife has, but certainly something worth noting