For me, agile (in the scrum/standup sense that you mean) is a huge red flag because it’s used as a cover for micromanagers. The kind of low-trust environment that needs micromanaging might sometimes be warranted if the team is unfit but I think it’s more likely the manager who is unfit. But either way, I suggest trying to get yourself into a high-trust environment before wiping the board. Agile (in the OG sense) kind of comes naturally in a high-trust team without having to force it through rigid stand ups.
How many companies talk about scrum or agile, and don't actually do it at all, vs those that implement them poorly.
Possibly the same with standups. What do your co-workers think about these processes? Can you come up with a better process that will work for everyone?
Doesn't mean you need to invent the next "agile" but adjust it to best fit your team. Everyone may be thankful to see something better
Is it possible for you to start a coding job where you are not coding a behemoth application, so that you are the main cog, and not a tiny part of the process? I don't know your background but is it possible to do more embedded type or mobile app development?
Best of luck, it seems that you are near your wits end.
I was lucky to I have a great experience w/ agile and scrum. We were a bit team (~70ish devs) broken down into teams or 4-6.
Each team had a PO (tech lead) and a "Scrum Master" . The scrum masters job was to make sure managers weren't micromanaging the teams. If they had issues or questions they had to go through the Scrum Master.
Only thing we all hated was release planning because it was 1 week of trying to make managers happy with delivery dates.