How does the revision of the page affect the position in the PS?

Question

Search Engine Optimization

Greetings
I thought. Maybe you can help in thinking with assumptions and experience, and if there is actual data (examples, links to studies, etc.), then it’s generally great.
There are two options for adding a page:
Option No. 1
Good text, meta tags, headings are added to the site page. Three months later, the page is supplemented with images and a couple of useful blocks.
Option number 2
Everything is added to the page at once from the first option.
It is logical to assume that, all other things being equal, the page formed according to the second option will rank better than the page from the first option for the first three months, because it contains more useful information. Logically.
Logic also suggests that after three months after adding additional materials to the first page, it should, in theory, rank in the same way as the second after all indexations and ratings by the search engine (it will catch up with the second page in quality).
Essence of the question
If we discard all conventions and compare the first and second options, then will it not turn out that the PS during the initial indexing and evaluation of these two pages will give the page created according to the second option an initially higher score. Those. evaluating two such pages, the search engine, for example, will give page number 1 a score of 80% quality, and the second - 100%. And then even when the first page is finalized to the quality of the second page, the rating of the second page will still not rise to the rating of the second. And in the end, after all the revisions and ratings, the first page will have a rating == 99%, and the second one == 100%.
What are the considerations on this matter?

Answer 1

In general, you have a very fuzzy logic, you should take into account the fact that after adding pictures, the ranking may fall, for example, they broke the content with pictures (or threw it out without being unique), lazy people did not scroll down and behavioral factors fell, as a result - ranking. In general, any "useful" action can negatively affect your page's PS score.
Without conditions, you should not consider options. Too many factors add up to a page score.

Answer 2

Yandex:
After the introduction of this algorithm https://webmaster.yandex.ru/blog/20999 for both options, the page will be evaluated and given the corresponding position. Those. if according to the first option: the page collects a stat, it will be assigned a position. After adding the information, she will collect a new stat and if the indicators become better, then the positions will increase, otherwise they will worsen. According to the second scenario: the page will be mixed into the search results until a competitor is found that is better in a number of indicators and takes the appropriate position.
Hence the conclusion: for Yandex, the first option is worse, since the changes made can not always improve positions, and sometimes, on the contrary, worsen them if the page already has high positions. As an example: there was a page on which the info users needed was on the first screen, in the second sentence of the text, but there were no pictures, just plain text. The page had high positions. We decide, in our opinion, to improve the page by adding an image, a table of contents (anchor links) to the beginning. As a result, the necessary information goes to 2-3 scroll screens. People stop always finding the information they need, which is why they often return to the search. Behavioral factors worsen, the page loses positions.
Google:
Actually, the picture is the same as with Yandex, except for the importance of the PF as a ranking factor. Those. changes may affect the position, but not much (+- 3-5 points).
General conclusion: you can not use only one placement option, you should use both. In case of dissatisfaction with the positions of the page, it is worth changing / supplementing something and looking at the results. If the positions are satisfied, then nothing needs to be changed.