I just did a Q post search for the word "sealed" and came across a ton of useful posts.
qalerts.app
Thousands of sealed indictments and many directly implicating many of the people we have wanted strung up for years. These were all filed in Trump's first term under people roundly hated these days (Barr, for instance). If these were filed in Trump's first term (and yet to be unsealed until the timing is right), what makes you think it isn't also happening right now?
Also, if Q post dates matter, March might be a big month for indictments.