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From what you’ve described, it seems Google Analytics 4 (GA4) is trying to encode your URLs that have non-latin characters, which is causing problems for your data analysis. To address this, it might be helpful to implement URL rewriting rules on your website’s server. There’s a way in web servers to automatically rewrite URLs before they are sent to the user’s browser. This is done with the help of a module called mod_rewrite in Apache servers, or using Rewrite module in NGINX servers.
You’ll likely need to work with your webmaster or web hosting provider to create URL rewriting rules to ensure that URLs are displayed in a more “friendly” format, ideally the same as displayed in the browser, therefore making them more recognizable and efficient for your use in GA4 and Looker Studio. This process can also go under the name “URL normalization,” where you map multiple accesses to a resource to a single canonical URL.
Please remember that making these changes could potentially impact your SEO, so make sure to proceed carefully, likely incorporating 301 redirects to maintain SEO rankings.
Alternatively, if rewriting URLs at source is not feasible, you can create code within GA4 to decipher the URLs during or after data ingestion. This will require code modifications which should be done by an experienced developer.
As a final thought, for optimal compatibility with diverse systems, having URLs primarily in English (where feasible) is a generally recommended web development practice.
