Depends , but how do you count by cheaper ?
With voucher and sales or without voucher ? Sometimes you need to check both before buying.
Everyday certain groceries got flash sales on laz and shope , you need to check everyday.It's hard to keep up on both.

Sometimes non Official Store is cheaper.You don't need to buy at Official store.
Toilet roll both the same price.
Shope isn't much better where seller didn't join 10% cashback.
https://www.lazada.com.my/products/premier-...6975404075.html
https://shopee.com.my/Premier-Pulp-Toiler-R...828.10004466185
New user ? Old user only have 2 free shipping.
Then need to compare on both platform charge on commission and campaign.
Shope coin very confusing.You need to pay full amount and cashback to you but you have to continue buying with voucher to get a cheaper price then cback to you again.Continue looping until non stop.
Wait till covid over , most will go back to retailer.Both platform is tiring , everyday check for price and promotion , play their campaign or games , you'll get tired and bored one day.