It still exists, at least for Spotify. The stupid design UI decision they made is you have to place your finger "over" the scrub bar, where the minutes:seconds eventually shows up. I was pressing the actual progress bar and getting hit or miss. Luckily, I found out if you press where those min:sec show up above the progress bar it works much more reliably. Not intuitive at all yet functional.
[UPDATE] Just checked and scrub bar also works in TuneIn. 2022.4.5