Code correction. Placed Style in the right place
MODIFY
WalletWasabi.Fluent/App.axaml
WalletWasabi.Fluent/App.axaml
<StyleInclude Source="avares://WalletWasabi.Fluent/Controls/StatusItem.axaml" />
<StyleInclude Source="avares://WalletWasabi.Fluent/Controls/PrivacyContentControl.axaml" />
<StyleInclude Source="avares://WalletWasabi.Fluent/Controls/SuggestionItem.axaml" />
-
- <Style Selector="ToolTip > TextBlock">
- <Setter Property="ClipToBounds" Value="False"/>
- </Style>
-
</Application.Styles>
<NativeMenu.Menu>
<NativeMenu>

MODIFY
WalletWasabi.Fluent/Styles/Styles.axaml
WalletWasabi.Fluent/Styles/Styles.axaml
<StyleInclude Source="avares://WalletWasabi.Fluent/Styles/RadioButton.axaml" />
<StyleInclude Source="avares://WalletWasabi.Fluent/Styles/SettingsLayout.axaml" />
<StyleInclude Source="avares://WalletWasabi.Fluent/Styles/Slider.axaml" />
+ <StyleInclude Source="avares://WalletWasabi.Fluent/Styles/ToolTip.axaml" />
</Styles>

ADD
WalletWasabi.Fluent/Styles/ToolTip.axaml
+<Styles xmlns="https://github.com/avaloniaui"
+ xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml">
+
+ <Style Selector="ToolTip > TextBlock">
+ <Setter Property="ClipToBounds" Value="False"/>
+ </Style>
+
+</Styles>

Code correction. Placed Style in the right place