It would draw attention to the issue. The Democrats would oppose it just as they oppose everything Trump does, making it a definitively partisan issue (which could be good or bad depending on your view of it). It may inspire people with sympathies toward Snowden to come forward about the Harris/Biden administration, or those who support Assange to seek out leaks.
Pardoning Assange and Snowden is nothing but symbolic.
The two of them will never be allowed to live safely/peacefully in the U.S even if they get pardoned.
I think they both deserve to be pardoned but practically even if Trump grants it, it changes nothing for them.
It would draw attention to the issue. The Democrats would oppose it just as they oppose everything Trump does, making it a definitively partisan issue (which could be good or bad depending on your view of it). It may inspire people with sympathies toward Snowden to come forward about the Harris/Biden administration, or those who support Assange to seek out leaks.