With difficulty at all-time highs, does solo mining with ASICs even make sense anymore?
If you mean earn money reliably when you say "make sense", IMO it never was since people start to mine BTC with tons of GPU more than a decade ago.
Has anyone here a solo block in the last year?
Yes. According to
https://mempool.space/mining/pool/solock, most recent ones (among solo miner who use ckpool) was mined 2 weeks ago.