Welcome, and thank you for posting here in the Roku Community, @Estefonowicz!
Thanks for reaching out. We'd be happy to help you disable the auto-play feature on The Roku Channel so you can enjoy the last 30 seconds during playback.
You may disable this by navigating to your Home screen. Scroll up or down to select Settings > Accessibility > Auto-play video to "Off". If autoplay is disabled on a device, channels may not begin video playback until the user navigates to a video or explicitly starts playback.
For reference, you may check our support article dedicated to this: How to change the auto-play video setting on your Roku streaming device
I hope you find this information helpful.
Best regards,
Carly
Carly Y.
Roku Community Moderator