An additional observation: In all the profiles from comment #2 and comment #4, the parent process appears to spend 700-800ms in font loading code (maybe not 100% of that time is font loading, it may be mixed with othe stuff too)
Bug 1904284 Comment 5 Edit History
Note: The actual edited comment in the bug view page will always show the original commenter’s name and original timestamp.
An additional observation: In all the profiles from comment #2 (https://share.firefox.dev/4eJqFMf, https://share.firefox.dev/4cB1bi6) and comment #4(https://share.firefox.dev/3W2jhEp), the parent process appears to spend 700-800ms in font loading code (maybe not 100% of that time is font loading, it may be mixed with othe stuff too)
An additional observation: In all the profiles from comment #2 (https://share.firefox.dev/4eJqFMf, https://share.firefox.dev/4cB1bi6) and comment #4(https://share.firefox.dev/3W2jhEp), the parent process appears to spend 700-800ms in font loading code (maybe not 100% but a large majority)