Impact of JavaScript redirects on search bots and site indexing?

Question

JavaScript

There are two pages with different urls, but the content on them is about the same. One actively uses JS + ajax, and the other is adapted for viewing users without JavaScript, and for bots.
Initially, a page for people without JS is loaded (which is for bots), then if the user has JS support enabled, then he is redirected using JS to another page (adapted for the active use of JS).
The question is whether it is possible to do this painlessly for indexing the site and whether this will negatively affect the issuance of the site in search engines?

Answer 1

Why is it so crooked? Probably a more important issue that is worth solving, then the need for solving yours will disappear by itself.
And it can have a negative impact in the following way: almost all users will be redirected to a page with JS, and, accordingly, they will most likely never see the address of the original page. And therefore, they will always put links to this page with JS, search engines will follow these links, and take them into account.

Answer 2

For one of my projects specifically for indexing, a similar scheme was implemented. Page urls without using AJAX in sitemap. Search engines index well.