I haven't seen anything considered "essential" being delayed, but anything that was not "immediately, medically" necessary in Texas was delayed on order of the Governor: https://www.texastribune.org/2020/07/09/texas-coronavirus-ho... My mother is a cancer patient and frequently had to delay (what I would consider essential) treatments by request of her provider.
Anecdotally, as someone married to an RN, supplies were absolutely running low throughout the pandemic. For the first year they were limited to 1 N95 mask per week, they frequently ran out of specific types/gauges of needles and had to make do with what was available, certain medications were hard to come by, etc. She doesn't work a COVID floor but still more often than not had a double patient load compared to pre-pandemic levels, both due to more patients and less staff. It was also incredibly common seeing people in neighborhood groups trying to find available beds for their family members during our surges, as most people were told there was a wait list expected to last at least 24 hours before something would be available.