The old Spectra Advanced Columns block shouldn’t be used under any circumstances. When Brainstorm Force launched version 2.0 of Spectra, they deprecated the Advanced Columns block. Their decision caused so many issues and such a backlash that they reintroduced the block as a “legacy block” two days later.
I (just another WordPress user) and the Spectra team probably have different views on whether you should use Spectra’s Container block or the native Groups block. I would personally always recommend using the native block when possible. It will continue to work regardless of whether you stick to Spectra or switch to another block plugin in the future.
Do note that the native Group block isn’t fully developed yet. It has settings for aligning content but lacks settings for justifying content. My recommendation would therefore be to use the native Group block when possible and otherwise switch to Spectra’s Container block.
(WordPress’ native Row block and Column block are practically the same block as the native Group block. Spectra’s Advanced Column block is a totally different block than Spectra’s Container block.)