Your file freezes my LO 24.8.3.2 under Fedora 41, KDE Plasma desktop. So, I looked at its contents.
First observation: your document is plagued with direct formatting instead of styling. This puts considerable stress on Writer, aggravated by a long inconsistent editing history (Writer has a markup feature to ease comparing documents and versions, but this markup has an effect similar to direct formatting with the consequence of slicing the encoding in very short unique sequences even if the formatting ends up the same).
Second observation: you have huge images in the document. They come in 3 formats: JPEG, PNG and SVM. It appears the last one was created for Star Office and few programs can display them nowadays. Apparently Draw can and therefore Writer can use them. But you didn’t care to tailor the images for the final usage in your document: they are stored “as is” and you probably requested cropping and scaling in the Writer insertion dialog. This also puts a considerable stress on Writer, both in file size and processing when displaying. To avoid damaging the image and to allow for reverting to original version without loss, Writer does not modify the image; instead, it computes a “transfer function” to be applied to the image whenever it is needed. You should always preprocess pictures with a dedicated image manipulation program like GIMP to scale (pixel density) and resize (width and height) them before inserting. This way, byte volume is kept to ideal and transfer function is not needed. In particular, this would avoid the 2+ MB images.
Third observation: near the beginning of the document, you have rectangular Drawing Objects anchored to empty paragraphs and apparently positioned manually. Since your document freezes Writer, I can’t check how they are used. I suspect your intent is to create a border around title and author name plus a thick line. This is wrong. A border is a paragraph attribute and should be defined as such, either as direct formatting or through style definition. This also spares the pain to reposition the rectangle when you edit your text.
Fourth observation: you have 4 single-row tables. If I understand correctly your goal, the left cell contain text and the right cell images. You want to “isolate” the images from text. Creating a table for this is useless (remember that tables are “complex” objects to handle because every cell is an independent sub-document and if you add pictures=frames over it, you make it even more difficult to manage).
Frames (images) are always external to text and with proper wrap property will not interfere with text. So either you write your text like ordinary discourse and you let wrap mode create “holes” in text for images; or you modify paragraph right indent (in your case) to create white space for the images. An indent is a paragraph-specific extra margin added to the page one. You can specify properties of the frame associated with the image so that the image always keeps its relative position to the paragraph no matter how you edit the document. If the image is taller than you text, you can also request that no other text is flown aside the image if needed.
IMHO, the document could as well have been composed with a mechanical typewriter (direct formatting). It also erroneously uses sophisticated constructs (like tables or drawing objects) as workarounds for ignorance of simple built-in features (like borders).
I recommend you learn first how Writer works. Read the [Writer Guide](https://documentation.libreoffice.org/en/english-documentation/), particularly the chapters about styles.
Since your document is (presently?) small, the simplest solution is to start anew. Don't use Drawing Objects, nor tables: there are other more efficient ways. Prepare your images outside Writer to the exact dimensions and resolution for the final output (96 dpi for screen or Web; 300 dpi for print).
