While I don’t use (or even heard of) most of the apps you mention, here are my own comments on some I’m familiar with:
Mimestream - extremely nice and responsive developer. But I never really got into how it handles images and marking up images and some other things like how conversation threads are displayed, and the ability to move emails between accounts. So I ended up sticking with standard Mail and use MsgFiler for filing in folders. I haven’t used it in some time now, so maybe things have improved?
1Password - I still use PasswordWallet on my devices. It seems sufficient, though sometimes a manual sync, via DropBox is needed. The developer is responsive. And there isn’t an annual subscription.
Google Drive for Desktop - I’ve moved away from Google Drive in favor of Microsoft OneDrive and my inexpensive (just $69/year) Office365 subscription. At first I did this because I was mad at Google for taking away our free Legacy Gmail Suite accounts - and for the ones they had left blocked us from adding more paid Google Drive space! Now I find I just like Microsoft’s apps more. Plus Microsoft actually has customer service to help with stuff, like doing things in Excel. It’s almost impossible to get Google support for anything.
Dropbox - I love it. It’s been the most reliable storage and file sharing system for me for years. I agree with where you wrote, “Dropbox’s constant need to go beyond its core storage function muddied the waters for me…” and I’ve tried some of their other services and just stick with storage.
BBEdit - the best. The developers are responsive, and the software is great.
Firefox - so nice I wish it was still in the lead. I use it for testing mostly though. I feel like I need to use Chrome mostly because everybody else does. By the way, Microsoft Edge on the Mac is quite nice, and you can import your stuff from Chrome and Firefox, and play with their AI apps.
Zoom - I use it of course. But recently discovered RingCentral. It looks like a Zoom clone! I’d like to understand more about that back store. The nice thing about RingCentral is that you can have video conferences for up to 100 people for free without the 40 minute time restriction of Zoom. That would have come in handy this past week while I was on a plane during a regularly scheduled volunteer group meeting and I couldn’t temporarily hand my credentials over to another host.
Microsoft 365 - I mentioned this above, and I do like it and appreciate the support, etc.
Backblaze - I highly recommend it. I have 3 backups: Time Machine, Carbon Copy Cloner (which I’m surprised you didn’t mention), and Backblaze.
Microsoft Edge - I mentioned this above.
And why about CyberDuck - great for FTP!