Is it okay to break a line at the timing of a period "."?

This time we will talk about line breaks.

When writing a blog, I've been experimenting with the timing of line breaks.
Until now, I feel like line breaks were often made at the timing of the punctuation marks "." and ",".

However, the environments of people who read articles vary, and even if it doesn't look strange when viewed on a computer, the timing of line breaks may be strange when viewed on a mobile device such as a smartphone, or vice versa. .

So, in order to improve this, I researched various people's blogs and came to a conclusion myself.

As a general rule, line breaks should only be done at the timing of the period “.”! !

That way, I feel less uncomfortable.

There are some exceptions to the general rule.
This does not apply if you want to insert an image etc. in the middle of a sentence.
For example, it looks like the following.

If you insert an image in the middle of a sentence,

Like this, a line break may occur even at a period other than the period ".".

For a while, I think I'll write articles using my own rules like this.