It ought to be clear to everyone that THURSDAY 13 May is the Ascension of the Lord. THURSDAY is Ascension… not Sunday. There really is no such thing as Ascension Thursday Sunday. It ought to be either Sunday after Ascension (TLM) or 7th Sunday of Easter (NO).
In many places, diocesan bishops are ending their dispensations from Sunday and Holy Day Mass participation. In other words, in most places people were not obliged to attend Mass on Sundays, etc., because of the CCP Virus which has resulted in ongoing COVID Theater. Bishops here and there are ending that dispensation. That means that, where you are, you may be once again obliged to attend Holy Mass on Sundays and Holy Days of Obligation.
Ascension Thursday is – in normal circumstances – a Holy Day of Obligation. All Sundays are Holy Days of Obligation.
You should check in your local diocese to see what the dispensation situation is. Has the obligation been restored? Find out.