Guys, quick Q:
What would you recommend as the best (polished, easy/intuitive UI, reliable) Lightning wallet? It should be able to run on either Android, or Windows (ideally on both, with synching between them).
Made a small payment on-chain y'day, with low fees, and it's still pending...

I hope you can handle it on your PC so you can use "Electrum" is the best (I hope available PC and Phone).
But you can use only a phone and then "trustwallet" for more future and multi-currency.
it is just personal opinion, (right now fee is high all wallet).

You can try
"BTC Transaction Accelerator". right now "Remaining hourly FREE transactions have vanished" you can try next hour it's workable.
Edite.
I didn't know Electrum can do Lightning... But I'm a total noob when it comes to Lightning...
Will look into it, thanks.
BTW, I've just used your ViaBTC Transaction Accelerator link, and it worked! I had to wait for the counter to reset to 100 free TXIDs, exactly on the hour. Nice service, bookmarked.
Thanks for that too. Merited.
or maybe go with a BTC only one.
(you have to choose between custodial and non-custodial lightning wallets)
I heard for the latter muun, eclair or breez might be good. I have muun installed but never used it.
Looking at Muun now. Looks nice, minimalistic, easy interface, on-/off-chain, non-custodial. Ticks all the boxes. Will check it out, thanks.
I use Breez and Phoenix, but only on the phone, and because they are mostly considered as self-custodial solutions.
I rejected Muun because it had a lot of issues regarding not really being a lighting wallet and requiring too many on-chain interfaces.. So I am not a technical person either, but there was a period in which Muun was non-functional due to how it was processing lighting transactions in non-lighting kinds of ways.
I also had an issue with Breez recently in which my channel was forced closed. I discuss that
here, and I have still not refunded my breez wallet.
About a year and a half ago, I had done some posts on the topic of my exploring of lightning network wallets, and I cannot find those posts, but I recall that I had referenced this
website comparing lightning network walletsThanks Jay, I will look into the apps you mention. It's when you want to make a small payment, that you appreciate the importance of LN (or whatever similar comes next). Paying $30 in fees for a $100 transaction is just ridiculous...