I ran yay -Syu and everything went well but electron25 has taken over 10 hours to update. Is there anything I could have done to speed things up?
Solution: I checked AUR and other people were commenting about similar issues. I swapped out the package for the -bin version.
compiling chromium yourself (which electron basically is anyway) will result in several hours of compiling time + the whole chromium source of several dozen gigabytes