I was also in the custom picture framing business.
We had a frame shop and art gallery and did very well for 23 years, then the C word (COVID)popped up and you know the rest of th story. Anyway, we used 3M924 exclusively, and it was good, but only after you burnish it thoroughly, when applying mat boards to a valued piece of artwork, I also used Titebond2 on the mats. I didn't trust the tape.
This is just a personal opinion, take it for what it is worth.
Rick