Prevent Toolbar flickering problem

[realLiangshiwei]

Description

Resolves #19325 (comment)

Checklist

• I fully tested it as developer / designer and created unit / integration tests
• I documented it (or no need to document or I will create a separate documentation issue)

How to test it?

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 51.56%. Comparing base (9141475) to head (90e0c47).
Report is 5 commits behind head on dev.

Additional details and impacted files

@@            Coverage Diff             @@
##              dev   #19334      +/-   ##
==========================================
- Coverage   51.57%   51.56%   -0.01%     
==========================================
  Files        3098     3098              
  Lines       98532    98532              
  Branches     7877     7877              
==========================================
- Hits        50815    50810       -5     
- Misses      46152    46157       +5     
  Partials     1565     1565              

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