You know, pgAdmin seems fine to me. About on par with MySQL Workbench (that one has nice ERD features and reverse/forward engineering), maybe a bit better in regards to just messing around with SQL code. Sometimes there's even nice unexpected surprises, I think there was a visualization of geospatial data when working with PostGIS even.

That said, I haven't found the one RDBMS tool that I'd absolutely love, along the lines of the "aha" moment I got when working on large Java codebases in IntelliJ IDEA, or using VS Code for throwing something smaller together quickly, or even using GitKraken for making Git palatable, or MobaXTerm for SSH and RDP/VNC/SFTP sessions.

pgAdmin and MySQL Workbench are both okay, but not amazing (even when autocomplete isn't broken in either). DataGrip by JetBrains somehow feels a bit clunky to me. DbVis is perhaps the best one I've seen for visualization, but that's all it does well. There's also Open Jail which is great for exploring datasets... but there's no tool that does pretty much everything in a way that is satisfying and lets me fly through tasks.

I'm still glad that there are options, though. DataGrip supporting lots of different RDBMSes is already a good thing, as are the more specialized options like pgAdmin.