Explore "content pattern replacement" from URL params

for example the URL

https://goog.space/#data=eyJ2YWx1ZSI6IkhlbGxvIHtSRUNJUElFTlR9LFxuXG5UaGFuayB5b3VyIGZvciB5b3VyIHtUT1BJQ30sXG5XYXJtIHJlZ2FyZHMsXG57U0VOREVSfSJ9

could it be interesting (and safe) to use replacement of the {UPPERCASE_TAG}, like what we'de lke in the URL placeholder of the !Find Engines URL, for for the content of a data message on goog-space. This from URL Search Params, so in the previous example:

https://goog.space/#SENDER="B. Marley"&RECIPENT=Marj&TOPIC="Present"&data=eyJ2YWx1ZSI6IkhlbGxvIHtSRUNJUElFTlR9LFxuXG5UaGFuayB5b3VyIGZvciB5b3VyIHtUT1BJQ30sXG5XYXJtIHJlZ2FyZHMsXG57U0VOREVSfSJ9

where SENDER and RECIPENT and TOPIC and the {} surrounded placedholders that want to be replaced (maybe by other apps as well, or from the output/convertion of the placeholder in the data.

example:

https://goog.space#data=...&SENDER=...&RECIPENT=...&TOPIC=...&output_placeholders=true

would result in "updating the current user navigator location URL" to:

https://goog.space#data=...←

where data is the data with the placeholder filled, and and all other "source input" query params have been stripped away from the URL