Might not be news to some but just re-sub'd to Amazon Prime Video (NZ) for the new season of Reacher, Wheel of Time and Invincible and noticed they are now promoting/pushing subscriptions for content from other services inside prime video, ie:

• Apple TV+
• MGM+
• Lionsgate+
• Crunchyroll
• DocPlay
• etc

https://www.nzherald.co.nz/business/amazon-prime-video-nz-unveils-new-features-and-confirms-ads-are-on-the-way/CYDWVMV64JEJPG7K3HMCWMNJYU/#:~:text=via%20Getty%20Images-,Add%2Don%20subs,-In%20the%20here

Pricing seems to be the same as subscribing directly so it's a bit weird.