Why I said like that earlier because once I submitted a tx that had fee of 20sat/vb a while ago but even after a day it never got accelerated then I increased the fee to 25sat/vb and submitted then its included in the very next block of them.
It cannot be adopted as a rule, and it is risky to send a transaction with a 25sat/vb fee, especially if you are in a hurry or want to complete the transaction within a week. The previous period also witnessed low fees due to the holiday season and the end of the year, and high fees may return again soon.