Quote from: l8orre on Today at 01:24:51 AM

viabtc offers to 'rectify' the situation for just ~0.09 BTC and I am not quite willing to pay for that.

In comparison to CPFP, it'll only need an extra 0.00178900BTC to bump to 20sat/vB.
Since there's still 0.00850354 change, you can still use some of it to CPFP whether the wallet supports CPFP so or not.
If you do not have any other available UTXO, you can perform CPFP by simply sending another transaction with enough absolute fee (fee rate multiplied by virtual size).

Quote from: l8orre on Today at 01:24:51 AM

I just hope it gets dropped from the mempool sooner or later...

Your transaction and its parents have an overall transaction fee rate of 7.89sat/vB as bundle.
It's nearing the bottom of mempools with default size setting.
The question is, if your multi-coin wallet keeps its own mempool and wallet transactions, rebroadcasts dropped txns or need user intervention to remove dropped transactions.
It's impossible to give a suggestion without knowing the wallet's name.