All teams and brands have had and have bugs, especially recently launched for sale.
I'm not a fanboy of either Rigol or Siglent, I just researched a lot before I bought the oscilloscope, I also compared Rohde & Schwarz, keysight (too expensive), Owon, Micsig (they didn't convince me), and in that price range Siglent seemed to me the best, with the best features and with 4 channels.
I do not intend to discredit any brand, I simply try to give the one who wants to buy an oscilloscope all the information that I collected for months so that he can decide.
If you are interested in my list of candidates (with 4 channels and this price range) it looks like this:
1st place - Siglent SDS1104X-E (won by having the best features)
2nd place - Micsig TO1104 Plus (good features and battery, portable)
3rd place - Rigol DS1054Z (good features)