I have many Garrard Type A tables and variants (and a RC88/4) with the unique pusher mechanism and cool angled spindle that make the stacked albums look like a flying saucer or the rings of Saturn - AWESOME!!!
I also have later Garrards that directly use a spindle mechanism (model 40 and model 50) to hold and drop the records. So all of these are record changers. From time to time I may stack a few albums. Also fun to stack 45s on the well-designed Garrard 45 changer spindle.
I have always found it fun to watch the old Garrards go through their cycle. I understand that certain factors, like tracking, vary with the number of records stacked and platter speed may or may not be influenced, but these have no audible effects that I can discern. Record wear is not an issue as I have so many albums that they don't really have a chance to degrade. Heck, you and I degrade. But at what rate? Not too quickly hopefully.
The only table that I own that is not a changer is my Sony Direct Drive PS-350 from the early '80s. It is fully automatic but not a record changer. Cheers and happy tracking!!!!!