https://www.bluetooth.com/specifications/specs/?types=adopte...
...and the GSM/UMTS/LTE/NR standards are at least an order of magnitude even bigger.
Sizes like that nicely lock out newcomers from the market, as it can't be entered without a strong financial backing.
https://www.intel.com/content/www/us/en/developer/articles/t...
Direct link: https://cdrdv2.intel.com/v1/dl/getContent/671200
https://ecma-international.org/publications-and-standards/st...
That's actually two specs in one, both ARM64 and ARM32 are part of this.
That's comparing apples to oranges, though. Those standards also specify the interaction between network components, not just between your phone and the network.
Mobile phone standards are more like the entire RFC collection than like the 802.11 specifications.