Which Dems have you been waiting on to enact progressive policies? The House is controlled by MAGA republicans and the Senate is in a dead lock for the most part. How do you get any progressive policies through there? The Supreme Court is controlled by conservatives that will deny anything moderately progressive.
Real change starts with local and state elections and electing Dems there. If you want that change, then try to help Dems in Texas, Alabama, Tennessee, Florida, etc. Otherwise, just electing a Dem president is not going to suddenly make for progressive policies. It will slow down the MAGA bunch, but it won’t completely stop them until there is real change at the local and state levels.
I used to play around with custom ROMs back in the Nexus days but I use my phone now for so many banking and other security - focused things nowadays that I feel it is just too risky to do all of that on a device that uses a non OEM ROM.
Maybe I’m too paranoid, but phones have gotten so complex today that even highly technical users have trouble ensuring that every aspect of their device is safe unless it is locked down to some extent.