Устанавливаете как обычные моды (желательно в отдельную папку, тут как вам удобно)
Если у вас не работает патреон, попробуйте убрать www из ссылки
Также у меня есть статья с модами, которые я использую 
1. https://tiasha-sims.tumblr.com/post/726624538263257088/loading-screen-pink-kitten

2. https://thesimstree.com/en/blog/inspiration/custom-loading-screen-replacements-by-thesimstree.html

3. https://www.patreon.com/posts/pearl-loading-127037751?utm_medium=clipboard_copy&utm_source=copyLink&utm_campaign=postshare_fan&utm_content=web_share

4. https://www.patreon.com/posts/tomarang-loading-103579808?utm_medium=clipboard_copy&utm_source=copyLink&utm_campaign=postshare_fan&utm_content=web_share

5. https://www.patreon.com/posts/don-lothario-82800334
Версия без трусов: https://www.patreon.com/posts/82855822?collection=82164

6. https://boosty.to/silenceguild/posts/3f588f39-fa7c-42e2-9099-36701c3da39a

7. https://www.patreon.com/posts/67965848?collection=82164

8. https://www.patreon.com/posts/67467574?collection=82164

9. https://www.patreon.com/posts/67467340?collection=82164

10. https://www.patreon.com/posts/bonehilda-screen-71187918

11. Агата бьет Дона https://www.patreon.com/posts/agnes-loading-71743570

12. https://www.patreon.com/posts/strawberry-early-89672733?epik=dj0yJnU9Qk5XMUExUDNzNjVGTk4wRnI1OVJLMEdLSU9OTmhzeGgmcD0wJm49VlV4dDE0a0w2c3Q5djVFTFVNOHViUSZ0PUFBQUFBR2lQREc4

13. https://www.patreon.com/posts/eternal-loading-113274770

14. https://www.patreon.com/posts/fairy-wings-105605712?utm_medium=clipboard_copy&utm_source=copyLink&utm_campaign=postshare_fan&utm_content=web_share

15. https://www.patreon.com/posts/purple-aesthetic-108789834?utm_medium=clipboard_copy&utm_source=copyLink&utm_campaign=postshare_fan&utm_content=web_share

16. https://www.patreon.com/posts/kuromi-loading-109743995?epik=dj0yJnU9ZXZOZC1IWGQ5WkQ1dFctekoxNTFQc0JWb0p0VFBpQzkmcD0wJm49cUQxMm0yU0lQV2FmUWpFLWFUUmlrUSZ0PUFBQUFBR2lQRDYw

17. https://www.patreon.com/posts/dark-academia-74835722?utm_medium=clipboard_copy&utm_source=copyLink&utm_campaign=postshare_fan&utm_content=web_share

18. https://raindropsoncowplants.tumblr.com/post/643131423753142272/sylvan-glade-loading-screens-today-i-learned-how

19. https://lonelytrait.tumblr.com/post/715205445031165952

20. https://www.patreon.com/posts/winter-in-47803512?utm_medium=clipboard_copy&utm_source=copyLink&utm_campaign=postshare_fan&utm_content=web_share

21. https://www.tumblr.com/parsifall/777638328471306240/train-with-butterfly-sims-4-loading-screens?source=share