How To Lock/Unlock Album/Folder In Gallery App

[RREaliene]

Samsung Galaxy 

Step 1 : Open Gallery 

Step 2 : Click On "Three Line" In Bottom Right

Step 3 : Click On Setting

Step 4 : Scroll Bottom And Click On "About Gallery"

Step 5 : Tap On Version Atleast 10 To 15 Time (Untill Gallery Lab Open)

Step 6 : Back On Gallery Setting

Step 7 : Click On Gallery Lab (In Bottom)

Step 8 : Find "Album Entry Lock" And Enable 

Step 9 : Close Gallery App 

Step 10 : Open Gallery App

Step 11 : Long Press Any Album 

Step 12 : Tap 3 DOTS > Tap More > Tap Lock Album > Enter PIN/Password/Fingerprint Lock 

And Same Steps To Unlock Album 

Minimum Required UI : One UI 5.1 And Above 

Note : Not Available In One UI 5.0 And Below 

[RREaliene]

Correction : Minimum UI Not Required
Avaliable In All Galaxy Smartphones

Real Time Test : 5 Month Pahle Samsung Galaxy M31 Mein Ye Feature Avaliable Nahi Tha, Par Aaj Avaliable Hai Bina Kisi Tarah Ke Update Ke

Note : Agar Aap Kisi Bhi Album Ko Lock Karte Hai To Sirf Gallery Se Nahi Dikhega, Lekin Baaki Kisi Bhi Jagah Se Wah Dikhta Hi Rahega

Best Option "Secure Folder" Hai