There have been a few questions here in the past on this subject, and I have usually been on pro-plastic for people who pay a bit attention to what they do. I finally made a short note collecting information on how to identify the plastic material used, and which bottles are suitable for what purpose, with a few useful links.(posted 8128 days ago)I realized that my ascorbic acid developers die much quicker in HDPE bottles compared to PET (PETE) bottles, and in search for a better container I reviewed this topic recently, which lead to me to make a note for myself, as I forget things very quickly.
On the other hand, D-76H, Microphen, etc. in PET bottles are still as active and vigorous as years ago. I am replacing bottles containing developing reagents with PET bottles with PVC or other lining sheet under the cap.
As always, I make small updates to the page incrementally.
Just FYI,