Budget labels from virtually all decades had imperfections. If you have any Crown albums, there are always little bubbles in the vinyl.
In my experience, vinyl starts to get bad in the early 70s with certain labels, not with others. from the mid to late 70s, it was almost always pretty bad. MCA and Capitol were the worst. Despite some of the negative claims about Dynaflex here and elsewhere, to me they were never as bad as Capitol and MCA. I have a Dynaflex "Mr. Lucky" that sounds amazing - it is my go-to copy of that album.
It seems to me that most of the mid- to late-70s jazz twofers on labels such as Milestone and Prestige were decent. Verve pressings from that period are another story though.
By the early 80s, pressings in general seemed to get better and remained so until CDs took over. Vinyl from the revival era is dicey, in my experience.