I have downloaded and tried out pooler cpuminer (from
https://sourceforge.net/projects/cpuminer/) to see how mining on CPU would turn out, and it seems I'm still getting the same "stratum requested work restart" message...
C:\Users\user\Downloads\pooler-cpuminer-2.5.1-win64>minerd --algo=sha256d --url=stratum+tcp://141.95.105.118:5973 --user=tc1qvrfu892afqskldtnl99n96c2ps7mj7ynutgtf5 --pass=c=TLC
[2022-02-17 12:06:31] Starting Stratum on stratum+tcp://141.95.105.118:5973
[2022-02-17 12:06:31] 8 miner threads started, using 'sha256d' algorithm.
[2022-02-17 12:06:31] Binding thread 3 to cpu 3
[2022-02-17 12:06:31] Binding thread 4 to cpu 4
[2022-02-17 12:06:31] Binding thread 6 to cpu 6
[2022-02-17 12:06:31] Binding thread 0 to cpu 0
[2022-02-17 12:06:31] Binding thread 2 to cpu 2
[2022-02-17 12:06:31] Binding thread 7 to cpu 7
[2022-02-17 12:06:31] Binding thread 5 to cpu 5
[2022-02-17 12:06:31] Binding thread 1 to cpu 1
[2022-02-17 12:06:31] Stratum requested work restart
[2022-02-17 12:06:32] thread 3: 2097152 hashes, 5519 khash/s
[2022-02-17 12:06:32] thread 4: 2097152 hashes, 5519 khash/s
[2022-02-17 12:06:32] thread 6: 2097152 hashes, 5323 khash/s
[2022-02-17 12:06:32] thread 7: 2097152 hashes, 5491 khash/s
[2022-02-17 12:06:32] thread 2: 2097152 hashes, 5365 khash/s
[2022-02-17 12:06:32] thread 0: 2097152 hashes, 5338 khash/s
[2022-02-17 12:06:32] thread 1: 2097152 hashes, 5311 khash/s
[2022-02-17 12:06:32] thread 5: 2097152 hashes, 4925 khash/s
[2022-02-17 12:06:50] Stratum requested work restart
[2022-02-17 12:06:50] thread 1: 81863520 hashes, 4639 khash/s
[2022-02-17 12:06:50] thread 7: 93683568 hashes, 5305 khash/s
[2022-02-17 12:06:50] thread 0: 93030784 hashes, 5271 khash/s
[2022-02-17 12:06:50] thread 6: 82344448 hashes, 4662 khash/s
[2022-02-17 12:06:50] thread 5: 81582312 hashes, 4631 khash/s
[2022-02-17 12:06:50] thread 3: 93460024 hashes, 5287 khash/s
[2022-02-17 12:06:50] thread 2: 81392144 hashes, 4611 khash/s
[2022-02-17 12:06:50] thread 4: 93837032 hashes, 5309 khash/s
[2022-02-17 12:07:11] Stratum requested work restart
[2022-02-17 12:07:11] thread 5: 79442392 hashes, 3762 khash/s
[2022-02-17 12:07:11] thread 1: 79582040 hashes, 3769 khash/s
[2022-02-17 12:07:11] thread 4: 88454024 hashes, 4190 khash/s
[2022-02-17 12:07:11] thread 6: 81980368 hashes, 3882 khash/s
[2022-02-17 12:07:11] thread 2: 77862920 hashes, 3688 khash/s
[2022-02-17 12:07:11] thread 3: 88607184 hashes, 4197 khash/s
[2022-02-17 12:07:11] thread 0: 88863448 hashes, 4208 khash/s
[2022-02-17 12:07:11] thread 7: 86143784 hashes, 4079 khash/s
[2022-02-17 12:07:32] Stratum requested work restart
[2022-02-17 12:07:32] thread 4: 93401312 hashes, 4430 khash/s
[2022-02-17 12:07:32] thread 0: 87391584 hashes, 4145 khash/s
[2022-02-17 12:07:32] thread 3: 93331808 hashes, 4427 khash/s
[2022-02-17 12:07:32] thread 6: 88300768 hashes, 4188 khash/s
[2022-02-17 12:07:32] thread 2: 86389704 hashes, 4097 khash/s
[2022-02-17 12:07:32] thread 5: 84374400 hashes, 4001 khash/s
[2022-02-17 12:07:32] thread 1: 83927312 hashes, 3980 khash/s
[2022-02-17 12:07:32] thread 7: 93129536 hashes, 4418 khash/s