This is made possible using the immersive portals mod for fabric 1.16.5 which adds in seamless portals and Pehkui for fabric 1.16.5 for the ability to change size when entering these portals.
--------------------------Mods🛠️--------------------------
Immersive Portals (Fabric) - [ Ссылка ]...
Immersive Portals (Forge) - [ Ссылка ]...
Pehkui (Fabric) - [ Ссылка ]...
Fabric Installer - [ Ссылка ]
Forge Installer - [ Ссылка ]
