Its effectiveness shall be observed by the years you have been using your device if and only if you plan to keep it for more than 3 years.
The Galaxy A53 5G was guaranteed to have 4 years of continuous android support.
Thanks for reaching out to us in order to find out whether using protect battery is effective on your Samsung Galaxy A53 5G.
The Protect Battery is a feature that lets you limit the maximum charge to 85% to minimize the charging wear to the battery. When charging a lithium battery, charging efficiency reduces significantly, usually after it reaches about 80-90% of its design capacity.
For more assistance and guidance, you may contact us via our online Samsung Customer Care support channels below.