Ruby [Cocoapods, fastlane]: Keep getting "Permission denied # rb_file_s_rename" - ruby

Question

I keep getting above error using various gems (e.g. cocoapods, fastlane) on my mac (macOS 12.0.1). I'll focus on cocoapods in this question, since I believe (hope) that the underlying issue is the same in both gems (as they both give the same ultimate error)
Things I've tried
Given pod and ruby full disk access
Uninstalled and reinstalled cocoapods gem via
gem list --local | grep cocoapods | grep -Eo '^[^ ]+' | xargs sudo gem uninstall
Uninstalled and reinstalled rvm ruby via
rvm remove 3.0.0
Did a clean install of the OS.
Full error
### Error
```
Errno::EACCES - Permission denied # rb_file_s_rename - (/var/folders/1l/x3rpqz7s15l2dwnh2kgr1ykh0000gn/T/.atomos.project.pbxproj20220713-6547-97xiro, /Users/chris/Desktop/buildManagement/iosBuild/Unity-iPhone.xcodeproj/project.pbxproj)
/Users/chris/.rvm/rubies/ruby-3.0.0/lib/ruby/gems/3.0.0/gems/atomos-0.1.3/lib/atomos.rb:26:in `rename'
/Users/chris/.rvm/rubies/ruby-3.0.0/lib/ruby/gems/3.0.0/gems/atomos-0.1.3/lib/atomos.rb:26:in `block in atomic_write'
/Users/chris/.rvm/rubies/ruby-3.0.0/lib/ruby/3.0.0/tempfile.rb:317:in `open'
/Users/chris/.rvm/rubies/ruby-3.0.0/lib/ruby/gems/3.0.0/gems/atomos-0.1.3/lib/atomos.rb:17:in `atomic_write'
/Users/chris/.rvm/rubies/ruby-3.0.0/lib/ruby/gems/3.0.0/gems/xcodeproj-1.22.0/lib/xcodeproj/project.rb:364:in `save'
/Users/chris/.rvm/rubies/ruby-3.0.0/lib/ruby/gems/3.0.0/gems/cocoapods-1.11.3/lib/cocoapods/installer/user_project_integrator.rb:158:in `block in save_projects'
/Users/chris/.rvm/rubies/ruby-3.0.0/lib/ruby/gems/3.0.0/gems/cocoapods-1.11.3/lib/cocoapods/installer/user_project_integrator.rb:156:in `each'
/Users/chris/.rvm/rubies/ruby-3.0.0/lib/ruby/gems/3.0.0/gems/cocoapods-1.11.3/lib/cocoapods/installer/user_project_integrator.rb:156:in `save_projects'
/Users/chris/.rvm/rubies/ruby-3.0.0/lib/ruby/gems/3.0.0/gems/cocoapods-1.11.3/lib/cocoapods/installer/user_project_integrator.rb:76:in `integrate!'
/Users/chris/.rvm/rubies/ruby-3.0.0/lib/ruby/gems/3.0.0/gems/cocoapods-1.11.3/lib/cocoapods/installer.rb:860:in `block in integrate_user_project'
/Users/chris/.rvm/rubies/ruby-3.0.0/lib/ruby/gems/3.0.0/gems/cocoapods-1.11.3/lib/cocoapods/user_interface.rb:64:in `section'
/Users/chris/.rvm/rubies/ruby-3.0.0/lib/ruby/gems/3.0.0/gems/cocoapods-1.11.3/lib/cocoapods/installer.rb:856:in `integrate_user_project'
/Users/chris/.rvm/rubies/ruby-3.0.0/lib/ruby/gems/3.0.0/gems/cocoapods-1.11.3/lib/cocoapods/installer.rb:182:in `integrate'
/Users/chris/.rvm/rubies/ruby-3.0.0/lib/ruby/gems/3.0.0/gems/cocoapods-1.11.3/lib/cocoapods/installer.rb:167:in `install!'
/Users/chris/.rvm/rubies/ruby-3.0.0/lib/ruby/gems/3.0.0/gems/cocoapods-1.11.3/lib/cocoapods/command/install.rb:52:in `run'
/Users/chris/.rvm/rubies/ruby-3.0.0/lib/ruby/gems/3.0.0/gems/claide-1.1.0/lib/claide/command.rb:334:in `run'
/Users/chris/.rvm/rubies/ruby-3.0.0/lib/ruby/gems/3.0.0/gems/cocoapods-1.11.3/lib/cocoapods/command.rb:52:in `run'
/Users/chris/.rvm/rubies/ruby-3.0.0/lib/ruby/gems/3.0.0/gems/cocoapods-1.11.3/bin/pod:55:in `<top (required)>'
/Users/chris/.rvm/rubies/ruby-3.0.0/bin/pod:23:in `load'
/Users/chris/.rvm/rubies/ruby-3.0.0/bin/pod:23:in `<main>'
/Users/chris/.rvm/rubies/ruby-3.0.0/bin/ruby_executable_hooks:22:in `eval'
/Users/chris/.rvm/rubies/ruby-3.0.0/bin/ruby_executable_hooks:22:in `<main>'
```
Output of pod env
### Stack
```
CocoaPods : 1.11.3
Ruby : ruby 3.0.0p0 (2020-12-25 revision 95aff21468) [x86_64-darwin21]
RubyGems : 3.2.3
Host : macOS 12.0.1 (21A559)
Xcode : 13.4.1 (13F100)
Git : git version 2.32.1 (Apple Git-133)
Ruby lib dir : /Users/chris/.rvm/rubies/ruby-3.0.0/lib
Repositories : trunk - CDN - https://cdn.cocoapods.org/
```
### Installation Source
```
Executable Path: /Users/chris/.rvm/rubies/ruby-3.0.0/bin/pod
```
### Plugins
```
cocoapods-deintegrate : 1.0.5
cocoapods-plugins : 1.0.0
cocoapods-search : 1.0.1
cocoapods-trunk : 1.6.0
cocoapods-try : 1.2.0
```
### Podfile
```ruby
source 'https://cdn.cocoapods.org/'
platform :ios, '11.0'
target 'UnityFramework' do
pod 'AppLovinMediationGoogleAdapter', '9.6.0.1'
pod 'AppLovinMediationUnityAdsAdapter', '4.2.1.0'
pod 'AppLovinSDK', '11.4.3'
pod 'FBSDKCoreKit', '~> 13.2'
pod 'FBSDKCoreKit_Basics', '~> 13.2'
pod 'FBSDKGamingServicesKit', '~> 13.2'
pod 'FBSDKLoginKit', '~> 13.2'
pod 'FBSDKShareKit', '~> 13.2'
end
target 'Unity-iPhone' do
end
use_frameworks! :linkage => :static
use_frameworks!
```