Difference between \footnote and the pair \footnotemark and \footnotetext

Question

Note: DG's answer is the practical solution for the problem, but I recommend you to also see David Carlisle's answer since it talks about the problem.

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I searched about this for a while, but I couldn't find an answer.

Sometimes we have a footnote within a paragraph and I personally think that using \footnote in the middle of it makes the code very confusing. So I came up with the idea of using the pair \footnotemark and \footnotetext to organize everything, but I know that this pair is usually used when you cannot use \footnote.

Hence, my question is: Am I committing a crime if I use \footnotemark and \footnotetext instead of \footnote in "normal situations"?

The point of this question is to know whether I will cause problems in large and complex Latex documents or whether doing that is considered bad practice like using eqnarray in place of align.

In summary

I want change from this:

Some text\footnote{1st footnote} and more text

to this:

Some text\footnotemark~and more text
\footnotetext{1st footnote}

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Note

I am aware of this specific danger of \footnotemark, so I can guarantee that this issue is not a problem in my case:

\documentclass{article}
\usepackage[paperheight=3cm]{geometry} % (not needed) just for the example

\begin{document}
Some text\footnotemark~and more text\footnotemark
\footnotetext{1st footnote}
\footnotetext{2nd footnote}
\end{document}

Answer 1

Use https://www.ctan.org/pkg/sepfootnotes to manage the footnote content (you can even use another file to store your notes):

\documentclass{article}
\usepackage[paperheight=3cm]{geometry} % (not needed) just for the example

\usepackage{sepfootnotes}
\sepfootnotecontent{1st}{1st footnote}
\sepfootnotecontent{2nd}{2nd footnote}

\begin{document}
Some text\sepfootnote{1st} and more text\sepfootnote{2nd}
\end{document}

Answer 2

I would say it is bad practice to use it as you show in a paragraph, certainly with white space before it.

As shown the footnote mark will appear where the mark is placed but the footnote text will be placed at the bottom of the page that ends the paragraph which may well be the next, or even later, page.

In cases where you have to split them this way it is usually because the text is in a box, so you can use \footnotetext immediately after the box and then it will again appear on the same page as the boxed text and so the same page as the mark.