I personally don't keep up with anything like that as a consumer. I understand many do though.
As a creator, I've always leaned more on the aspect of. Whenever it's 'done', post it, unless you're like. Trying to maintain a weekly post or some sort of schedule, then you would be ahead in anticipation of a week or two you aren't able to create. You would have like the next few chapters ready to post, without posting it. Or pages, etc.
I'm not the type to check back weekly just to see a few pages of comic, or some 1k words of text. Tapas is very inclined to make it 'short' for consumers regarding mobiles, and I think that works on some level.
Ultimately though, the thing is mostly this. If your work is finished, then it's finished. And there's no more 'updates' in the typical sense. There is value in having some sort of schedule per se, as you'd get more 'readers' that way. In the long game though, for most creators, I don't think it impact it that much if it's just a posting schedule.
Cause what you're truly after are the readers that wants to read, and those readers are random. Since everyone can only check out your work 'once' in ways, it doesn't matter much if it's now, or later. As long as you've reached them.
Meaning, the posting schedule on its own, it's not as powerful as other advertising aspects that you could do. But yes, that is tiring on its own and takes energy too. To post on twitter every time you have updated your series and so forth.
Use your best judgement regarding what you yourself would like as a consumer. I definitely don't think updates should be 'short'. Tapas is design in a way that comic especially, many updates just 1 page at a time. Save up a few pages, and update it when you feel like it is substantial to you. I wouldn't worry much about the 'reach', as that's not meaningful to most creator.
Getting more potential reader is important. Posting regularly on a schedule, most people I don't think read on a schedule, a lot of people are busy, and they'd catch up pretty quickly when they finally have the time. This isn't YouTube, in which you need to consistently post to stay within the algorithm, there's no 'algorithm' on here really. And it isn't really luck on here as it is on YouTube, where many creators are creating quality material. This is story, readers are very picky, they will either find a work to be for them, or not so.