https://massiveplayz.de/modules/mod_twitchclips/media/js/twitchclips.js?11ea14

1document.addEventListener(
2    "DOMContentLoaded",
3    function ()
4    {
5        const clips =
6            document.querySelectorAll(
7                ".twitch-clip-item"
8            );
9
10        const step = 4;
11
12        let visible = step;
13
14        clips.forEach(
15            (clip, index) =>
16            {
17                if (index < visible)
18                {
19                    clip.classList.add(
20                        "visible"
21                    );
22                }
23            }
24        );
25
26        const button =
27            document.getElementById(
28                "loadMoreClips"
29            );
30
31        if (!button)
32        {
33            return;
34        }
35
36        button.addEventListener(
37            "click",
38            function ()
39            {
40                visible += step;
41
42                clips.forEach(
43                    (clip, index) =>
44                    {
45                        if (
46                            index < visible
47                        )
48                        {
49                            clip.classList.add(
50                                "visible"
51                            );
52                        }
53                    }
54                );
55
56                if (
57                    visible >= clips.length
58                )
59                {
60                    button.style.display =
61                        "none";
62                }
63            }
64        );
65
66        if (
67            clips.length <= step
68        )
69        {
70            button.style.display =
71                "none";
72        }
73    }
74);