Memory increases significantly when a TMP Text component has a lot of text

How to reproduce:
1. Open the attached Project "Test_TMP.zip"
2. Build and Run a Development Build of the Scene "SampleScene" on iOS
3. Open the Memory Profiler (Window -> Analysis -> Memory Profiler)
4. Attach the Memory Profiler to the running Player and Capture a Snapshot
5. In the Player click the "FULL" Button
6. In the Memory Profiler capture another Snapshot
7. Compare the Snapshots

Expected result: barely any additional memory is used
Actual result: memory usage increases by 40-70MB

Reproducible on: 2021.3.40f1, 2022.3.36f1, 6000.0.9f1

Reproduced on:

• iPhone 13 (iOS 15.0)
• iPad Pro (9.7 inch, WiFi) (iOS 14.8)

Notes:

• On macOS, the memory increase is ~6MB
• The json file containing the text takes up 46KB of space