diff --git a/.github/workflows/python.yml b/.github/workflows/python.yml
index 68490eeb..0171a620 100644
--- a/.github/workflows/python.yml
+++ b/.github/workflows/python.yml
@@ -41,7 +41,6 @@ jobs:
         uses: actions/setup-python@5fda3b95a4ea91299a34e894583c3862153e4b97  # v7.0.0
         with:
           python-version: ${{ env.PYTHON_VERSION_DEFAULT }}
-          architecture: 'x64'
       - name: Install poetry
         # see https://github.com/Gr1N/setup-poetry
         uses: Gr1N/setup-poetry@48b0f77c8c1b1b19cb962f0f00dff7b4be8f81ec  # v9
@@ -67,7 +66,6 @@ jobs:
         uses: actions/setup-python@5fda3b95a4ea91299a34e894583c3862153e4b97  # v7.0.0
         with:
           python-version: ${{ env.PYTHON_VERSION_DEFAULT }}
-          architecture: 'x64'
       - name: Install poetry
         # see https://github.com/Gr1N/setup-poetry
         uses: Gr1N/setup-poetry@48b0f77c8c1b1b19cb962f0f00dff7b4be8f81ec  # v9
@@ -93,7 +91,6 @@ jobs:
         uses: actions/setup-python@5fda3b95a4ea91299a34e894583c3862153e4b97  # v7.0.0
         with:
           python-version: ${{ env.PYTHON_VERSION_DEFAULT }}
-          architecture: 'x64'
       - name: Install poetry
         # see https://github.com/Gr1N/setup-poetry
         uses: Gr1N/setup-poetry@48b0f77c8c1b1b19cb962f0f00dff7b4be8f81ec  # v9
@@ -119,7 +116,6 @@ jobs:
         uses: actions/setup-python@5fda3b95a4ea91299a34e894583c3862153e4b97  # v7.0.0
         with:
           python-version: ${{ env.PYTHON_VERSION_DEFAULT }}
-          architecture: 'x64'
       - name: Install poetry
         # see https://github.com/Gr1N/setup-poetry
         uses: Gr1N/setup-poetry@48b0f77c8c1b1b19cb962f0f00dff7b4be8f81ec  # v9
@@ -143,7 +139,7 @@ jobs:
             python-version: '3.14'
             toxenv-factors: '-current'
           - # test with the lowest dependencies
-            os: ubuntu-latest
+            os: ubuntu-24.04
             python-version: '3.9'
             toxenv-factors: '-lowest'
     steps:
@@ -157,7 +153,6 @@ jobs:
         uses: actions/setup-python@5fda3b95a4ea91299a34e894583c3862153e4b97  # v7.0.0
         with:
           python-version: ${{ matrix.python-version }}
-          architecture: 'x64'
       - name: Install poetry
         # see https://github.com/Gr1N/setup-poetry
         uses: Gr1N/setup-poetry@48b0f77c8c1b1b19cb962f0f00dff7b4be8f81ec  # v9
@@ -190,9 +185,18 @@ jobs:
           - "-allExtras"
           - "-noExtras"
         exclude:
-          - os: macos-latest  # macos-latest is incompatible with some PY versions
+          - os: macos-latest
+            python-version: "3.10"
+          - os: macos-latest
+            python-version: "3.9"
+          - os: ubuntu-latest
+            python-version: "3.9"
+        include:
+          - os: macos-15
             python-version: "3.10"
-          - os: macos-latest  # macos-latest is incompatible with some PY versions
+          - os: macos-15
+            python-version: "3.9"
+          - os: ubuntu-24.04
             python-version: "3.9"
     steps:
       - name: Disabled Git auto EOL CRLF transforms
@@ -211,7 +215,6 @@ jobs:
         uses: actions/setup-python@5fda3b95a4ea91299a34e894583c3862153e4b97  # v7.0.0
         with:
           python-version: ${{ matrix.python-version }}
-          architecture: 'x64'
       - name: Validate Python Environment
         shell: python
         run: |
diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index f4edc5cd..b2541ad7 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -56,7 +56,6 @@ jobs:
         uses: actions/setup-python@5fda3b95a4ea91299a34e894583c3862153e4b97  # v7.0.0
         with:
           python-version: ${{ env.PYTHON_VERSION_DEFAULT }}
-          architecture: 'x64'
       - name: Install poetry
         # see https://github.com/Gr1N/setup-poetry
         uses: Gr1N/setup-poetry@48b0f77c8c1b1b19cb962f0f00dff7b4be8f81ec  # v9
@@ -80,7 +79,6 @@ jobs:
         uses: actions/setup-python@5fda3b95a4ea91299a34e894583c3862153e4b97  # v7.0.0
         with:
           python-version: ${{ env.PYTHON_VERSION_DEFAULT }}
-          architecture: 'x64'
       - name: Install poetry
         # see https://github.com/Gr1N/setup-poetry
         uses: Gr1N/setup-poetry@48b0f77c8c1b1b19cb962f0f00dff7b4be8f81ec  # v9
@@ -137,7 +135,6 @@ jobs:
         uses: actions/setup-python@5fda3b95a4ea91299a34e894583c3862153e4b97  # v7.0.0
         with:
           python-version: ${{ env.PYTHON_VERSION_DEFAULT }}
-          architecture: 'x64'
       - name: Install and configure Poetry
         # Seehttps://github.com/snok/install-poetry
         uses: snok/install-poetry@a783c322200f0519c7926aa6faa857c4e23e9263  # v1.4.2