Yeah, but we don't need to be 135 - I'm just a cranky 70 year old.

That's the problem you'll often find, especially with non free drivers, (as stated above), most distros just include the 'usual' ones.

Try running, in a terminal,

dmesg | grep wifi

(you may need to use sudo),
that should tell you the necessary driver firmware to be able to get your wifi running.

P.S. Other distros you may find worth looking at are MX linux & AntiX, usually have enough drivers for most equipment.

I've been an ardent AntiX user for several years, but this Beowulf release is calling to me, I've dabbled with Devuan before now, but have always gone back to my regular distro - maybe my time has come to convert.....

Maybe the Devuan image doesn't have the USB drivers built in - I've come across this with other distros, (& BSD).

P.S. The larger first partition is for the RPi4, (but doesn't harm other Rpi).

It will depend on how many bugs need fixing, that is what the beta release is for.

As an aside, I tried putting the RPi3 64bit system onto a RPi4 Raspbian card, replacing the Debian system - it didn't work - then later on after having deleted my card, I realized that it would need all the kernel modules replacing too - my excuse is that I'm getting old.

I'll give the above a try sometime, & have another go myself, remembering to replace the kernel modules next time.

That should read /home/[username]/Desktop/palemoon/palemoon.

However, try moving it to /home/[username]/palemoon/palemoon & running by typing ./palemoon/palemoon in a terminal.
(If that doesn't work, check the permissions.)

I put AntiX (systemd free) onto my Toshiba chromebook, (2GB ram/16GB eMMC), I used mrchromebox's boot replacement software.

https://mrchromebox.tech/

You can delete an over written /dev file, but it is a bit more complicated than a normal directory file to re instate, if I remember rightly, (I did it a couple of times too ).

Edit: Check out mknod. (These are 'node' files.)

Just treat it as if it were an empty disk, insert & boot from your pendrive, run the installer, partition the disk how you want it, & install it.

Advocacy is the easiest way for a beginner, along with the suggestion of improving documentation.

Learn to use the command line, that is where you will start to learn Linux.

If Debian works, so will Devuan.

No problem downloading other distros, even DVD images, but just can't get passed 20~30MB from your storage site, even had another go just before writing this. So, I guess, that's it, I won't be able to help.